用括号内所给词的适当形式填空。

1. Many books and magazines are         _ (aim) specifically at teenagers.

2.You should buy a dictionary. It's very         _ (use) for your study.

3. They asked me so many questions that I got _         (confuse).

4.When you buy something, you have to be        _ (care).

5. Don't believe him.  He didn't tell you the            (true).

有机磷类与氨基甲酸酯类混合农药中毒时应采取救治法是

A．使用阿托品解救

B．使用肟类解毒剂解救

C．应先用阿托品，使氨基甲酰化胆碱酯酶恢复后，再用肟类解毒剂，但用量不宜过大，且必须同时使用阿托品

D．使用其它药物解救

E．禁用肟类解毒剂