What new technology has the California company come up with?
A. It can test the mercury level in a particular piece of fish in 40 seconds.
B. It can test the mercury level in human in 40 seconds.
C. It can test the mercury level in a particular piece of fish in 45 minutes.
D. It can test the mercury level in human in 45 minutes.
查看答案
Why does the FDA say that the mercury labeling is unneccesary?
A. Because the pulic isn't interested in it.
Because the labeling is not always accurate.
C. Because the mercury labeling will panic the pulic.
D. Because all the fish sold at the grocery stores is tested and healthy.
What do you know about Matthew?
A. He is a collge student.
B. His daily diet is changed to be mainly fish.
C. The mercury level in his blood was 125 times higher than normal.
D. He failed to study well because if the high mercury level in his blood.
Which of the following statements is TRUE according to the report?
A. It is hard to explain why some fishes contain mercury.
B. The mercury level in tuna can be 300 times higher than that of other fish.
C. The consumers are anxious to know the exact mercury level in the fish they buy.
D. A small California grocery chain is the first to adcocate the mercury labeling.
连续曲线上凹弧和凸弧的分界点是拐点。
A. 对
B. 错
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