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【单选题】
为保证车辆顺利起动,启动电流稳定值应该为100~150A,蓄电池内阻不大于( )mΩ;稳定电压不小于9V。
A.
5
B.
10
C.
20
D.
50
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【判断题】虾蟹在食用前一般要求鲜活,对于死虾、死蟹应及时剔除,就可食用。
A.
正确
B.
错误
【简答题】On a cold day in December, a lady saw a little boy _____ the window of a shoe store. It was because the boy wanted to have a _____. After the lady knew it, she bought him _____ pairs of socks and a pa...
【单选题】向视图的位置可以自由配置,视图的投影方向和名称( ).
A.
不必标注
B.
必须标注
C.
可标或不标注
D.
以上答案皆可
【简答题】When asked if it was all right to sit besidehim, the man replied a gesture of “A-OK.”
【单选题】船舶通过Inmarsat卫星向陆地用户发送信息,其通信收费为_____。
A.
卫星链路费
B.
地面站设备使用费
C.
公众通信网络使用费
D.
A+B+C
【单选题】They asked _____ to improve the soil. [     ]
A.
that it was hard
B.
whether it was hard
C.
if it is hard
D.
when was it hard
【单选题】船舶通过Inmarsat卫星向陆地用户发送信息,其通信收费为()。
A.
卫星链路费
B.
地面站设备使用费
C.
公众通信网络使用费
D.
D、B和C
【简答题】A philosophy professor stood before his class with some on the desk in front of him. When the final student was seated he picked up a large and empty glass bottle and filled it with . He then asked th...
【单选题】船舶通过Inmarsat卫星向陆地用户发送信息,其通信收费为_____。
A.
卫星链路费
B.
地面站设备使用费
C.
公众通信网络使用费
D.
B和C
【判断题】虾、蟹在食用前一般要求鲜活,对于死虾、死蟹应该及时剔除,因为死亡的海产品会分解产生一种叫组胺的有毒物质。
A.
正确
B.
错误
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