单项选择题

Questions 11 to 20 are based on the conversation you have just heard.

A．In a hospital.
B．At school.
C．In the pharmacy.
D．At a filling station.
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Family Education1. 你对图片的描述。2. 你对图片的理解。3. 对我们的启发。
单项选择题
The disadvantage of the patchwork of US regulatory agencies that govern agricultural biotech is that ______.
A．none of these agencies is responsible for wild plants
B．one thing is omitted from the patchwork: human tolerance for pesticides
C．there is bureaucratic cracks and the public interest is ignored
D．pesticides are exempt from FDA' s reach
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