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问题 单项选择题

对蛔虫、钩虫和鞭虫等虫卵有杀灭作用，从而控制传播的药物是（）。

A．甲苯咪唑

B．吡喹酮

C．哌嗪

D．左旋咪唑

E．噻嘧啶

答案

参考答案：A

补全对话，情景问答
根据情境与对话内容，从方框中选择合适的选项补全对话。
A. You're welcome.
B. Which bus shall I take?
C. I don't know.
D. You can take a bus to go there.
E. Please ask the woman over there.
A: Excuse me, Sir. Could you tell me the way to Beijing Safari Park (北京生动物园)?
B: Sorry, 1_____________ I'm a tourist here. 2_____________
A: Excuse me, Madam. How can I go to Beijing Safari Park?
C: Go to that bus station on your right. 3_____________
A: 4_____________
C: You can take a No. 365 bus.
A: Thanks very much.
C: 5_____________
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单项选择题

During the last few years, it has been realized that maintenance of programs is more expensive than development, so reading of programs by humans is as important as (67) them.

A．editing

B．writed

C．written

D．writing
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