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单选题
有关FISH的说法错误的是（）
A
每次可以应用多个探针
B
每次只能应用一个探针
C
探针稳定，操作安全
D
可以联合应用地高辛或生物素多种标记系统
E
快速敏感
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更多 “单选题有关FISH的说法错误的是（）A 每次可以应用多个探针B 每次只能应用一个探针C 探针稳定，操作安全D 可以联合应用地高辛或生物素多种标记系统E 快速敏感” 相关考题
考题
The underlined words “the evicted fish” in Paragraph 3 refer to .A. the fish beaten up B. the fish found outC. the fish fattened up D. the fish driven away
考题
30． Why can fish swim in the water? Jack's answer is ________ ．A．fish can't walk on landB． fish can- t swim on landC． fish can-t walk in the waterD．fish has no legs or hands
考题
Why is it a problem if all the smaller fish species die?A. It's not healthy for the environment.B. People only like to catch big fish.C. There are too many small fish.D. The smaller fish can get lost in the lake.
考题
Text 3 It is a good time to be a fisherman.The global fish-price index of the UN's Food and Agricultural Organization（FAO）hit a record high in May.Changing consumer diets,particularly in China,explain much of the sustained upward movement.High oil prices,which increase the cost of fishing and transportation,also add to the price of putting fish on Lhe table.Not all fish are creaLed equal,however.There are two types of fish production:"capture"（or wild）and"aquaculture"（or farmed）.And they seem to be on different tracks.Fish such as tuna,the majority of which is cau~;ht wild,saw much bigger price increases than salmon,which is easier to farm.Overall,the FAO's price index for wild fish nearly doubled between 1990 and 2012,whereas the one for farmed fish rose by only a fifth.What explains this big difference?The amount of wild fish captured globally has barely changed in the past two decades.The ceiling,of about 90m tonnes a year,seems to have been reached at the end of the 1980s.Overfishing is one reason,as is the limited room for produclivity growth,particularly if consumers want high quality.Patrice Guillotreau of the University of Nantes tells the story of a fleet in France that decided to trawl,rather than line-catch,its tuna.It braughi more back to shore,but the fish were damaged.It could not be sold as high-value fillets and was only good for canning.The old ways of catching fish are still best if you want the highest profits,says Mr CuiUotreau.In contrast,the farmed-fish industry continues to make productivity improvements.Fish farms have found crafty ways to use lower quantities of fish meal as feed.In the early days of aquaculture,it could take up to ten pounds of wild fish to produce one pound of salmon.Now the number is down to five.That may still be an inefficient use of protein,but the ratio is set to improve further.Fish farms have also become more energy-efficient,meaning that they are less affected by higher energy pnces.And they have learned how to handle diseases beUer,reducing the quanlity of fish that ends up being unsellable.As a resuli of all these improvements,the global production of farmed fish,measured in tonnes,now exceeds the producUon of beef.Output is likely to continue growing:the FAO estimates thal by 2020 it will reach six times its I990 level.
Tuna and salmon are mentioned to show that______A.salmon is not as expensive as tuna
B.tuna is more popular among consumers
C.wild fish is more precious than farmed fish
D.the prices of fish are in fact decided by FAO
考题
Help yourself to some fish!（）A、You are very kindB、Thank youC、The fish smells badD、Yes. I will do
考题
Please help yourself to the fish.（）A、Thanks, but I don't like the fish.B、Sorry, I can't help.C、Well, fish don't suit me.D、No, I can't.
考题
“烤鱼青蛤汁”的英文菜肴名称是（）。A、roast fish with clam sauceB、roast fish with herb sauceC、roast spring chicken with rosemary sauceD、roast spring chicken with grape sauce
考题
单选题Please help yourself to the fish.（）A
Thanks, but I don't like the fish.B
Sorry, I can't help.C
Well, fish don't suit me.D
No, I can't.
考题
单选题Which of the following questions is answered according to the information given in the passage?A
What is the toxin used by the fish killer?B
Who first discovered the organism?C
How does the fish killer paralyze fish?D
How many fishes can the organism kill each day?
考题
填空题In warm and mild regions, farmed fish and shellfish are also affected by POPs because they are fed fish meal.____
考题
单选题Which of the following statements is true?A
Scientists have solved the mystery about the fish killer.B
More studies need to be made about the fish killer.C
It is proved that the algae are reducing fish populations.D
Humans have already been affected by the toxin.
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