问题
单项选择题
砒石的用量（）
A.0.002～0.004g
B.0.03～0.06g
C.0.3～0.6g
D.0.015～0.03g
E.0.05～0.1g
答案
参考答案：A
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砒石的用量（）
A.0.002～0.004g
B.0.03～0.06g
C.0.3～0.6g
D.0.015～0.03g
E.0.05～0.1g
参考答案：A
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| 下面各题划线部分中只有一处错误，请选出并改正。将选项的字母代号填入题前括号内，改正后的词写在右边的横线上。 | |
| ( )1. Could you please doing it again ? A B C D ( )2. He’s going to uses the computer. A B C D ( )3. It’s kind for you to help me with my English. A B C D ( )4. Could you help me folding the clothes ? A B C D ( )5. We will take well care of your pet dog. A B C D | ______ ______ ______ ______ ______ |