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【判断题】
毒物是指在日常接触条件下,以较小剂量进入机体后,导致机体组织细胞代谢、功能和(或)形态结构损害的化学物质。A.
正确
B.
错误
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【单选题】Mr Wang does what he can us improve our English.
A.
help
B.
helped
C.
helping
D.
to help
【简答题】在上图中,电阻的电路符号是( )。
【单选题】What is the correct way to read the decimal '106.16' in English?
A.
One hundred and six point one six.
B.
One hundred and six point sixteen.
C.
One hundred and six points one six.
D.
One hundred and six points sixteen.
【简答题】在电路图中，电阻器的文字符号是（），电位器的文字符号是（）。
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