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【判断题】
种子处理是指杀菌剂处理种子、果实、块根、苗木、秧苗、插条等繁殖材料,消除繁殖材料表面和内部的病原菌。
A.
正确
B.
错误
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皮皮学刷刷变学霸
举一反三
【单选题】以下不属于自动稳定器的是( )
A.
所得税税收体系
B.
失业保障机制
C.
农产品价格维持制度
D.
再贴现率
【单选题】_____ under the oak the next evening I said, "Our first fallacy tonight is called Ad Misericordiam."
A.
Sit
B.
Seated
C.
seating
D.
sat
【判断题】在Java中,^ 表示乘方运算。
A.
正确
B.
错误
【单选题】无源二端网络如图所示。输入端的电压 u=220 cos ( 314t+20 ̊ ) V , 电流 i=220 cos ( 314t - 33 ̊ ) A ,试求此二端网络的由两个元件串联的等效电路的功率因数 cosφ= ,该网络的性质为 。
A.
0.6,容性
B.
0.8,容性
C.
0.6,感性
D.
0.8,感性
【判断题】^是表示乘方运算
A.
正确
B.
错误
【单选题】听力原文:M: It's such a nice warm day. I think I'll go and write my report under the oak tree. W: I'd like to join you but I find it hard to concentrate outside, and I need to finish my paper this afterno...
A.
Go and read under the oak tree with the man.
B.
Go and write the report with the man.
C.
Stay at home and finish writing her report.
D.
Stay at home and finish writing her paper.
【单选题】What has Andy left to Red under the big oak tree?
A.
a map
B.
a letter
C.
a postcard
D.
a bank account
【单选题】听力原文:M: It's such a nice warm day. I think I'll go and write my report under the oak tree. W: I'd like to join you but I find it hard to concentrate outside, and I need to finish my paper this afterno...
A.
Go and read under the oak tree with the man.
B.
Go and write the report with the man.
C.
Stay at home and finish writing her report.
D.
Stay at home and finish writing her paper.
【简答题】无源二端网络如图所示。输入端的电压 u=220 cos ( 314t+20 ̊ ) V , 电流 i=220 cos ( 314t - 33 ̊ ) A ,试求此二端网络的由两个元件串联的等效电路的功率因数 cosφ= ,该网络的性质为 。
【判断题】^表示乘方运算。
A.
正确
B.
错误
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