在革命统一战线的两个联盟中，基本的主要的联盟是A．工农联盟 B

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问题单项选择题

在革命统一战线的两个联盟中，基本的主要的联盟是

A．工农联盟

B．工人阶级同资产阶级的联盟

C．劳动者同非劳动者的联盟

D．被剥削者同剥削者的联盟

答案

参考答案：A

单项选择题

The client asks when he can stop taking the eye medication for his chronic open-angle glaucom().

A. Which would be the nurse’s best responseA. "You can stop using the eye drops when your vision improves. "

B. "You Need to use the eye drops only when you has symptoms. "

C. "You can discontinue the eye drops after 2 months of normal eye examinations. "

D. "You must use the eye medication for the rest of his life. "

单项选择题

空气中（）的浓度对光合强度有直接影响。

A.氧气

B.氮气

C.水蒸气

D.二氧化碳