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【多选题】
下面属于不定根的是:A.
支持根
B.
气生根
C.
攀援根
D.
寄生根
E.
肉质直根
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反馈参考答案：
举一反三
【单选题】从工程机械上拆一蓄电池时,首先应该拆下 电缆;将蓄电池安装在工程机械上时,应首先安装 电缆。( )
A.
负极 正极
B.
正极 负极
C.
正极 正极
D.
负极 负极
【单选题】已知项目盈亏平衡时的产量是8万件,项目达产时的产量是12万件,产品销售单价是68元,则项目的生产能力利用率为( )
A.
150%
B.
66.67%
C.
8万件
D.
12万件
【简答题】阅读理解。 Wang Lei is a Chinese taxi driver. He has a son. His name is Wang Hong. He is in No. 14 Middle School. Mr Brown is his English teacher. He loves his student, and Wang Hong studies English well. ...
【简答题】阅读并回答问题 Wang Lei is a Chinese taxi driver. He has a son. His name is Wang Hong. He is in No.14 Middle School. Mr Brown is his English teacher. He loves his student, and Wang Hong studies English well....
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