皮皮学，免费搜题
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【单选题】
风疹的出疹特点是
A.
发热3～4小时开始，自耳后、发际、颌面、颈出疹，渐及躯干及四肢，最后见于手足心
B.
发热1～2天开始，最早见面颊部，迅速扩展至躯干和四肢，24小时内布满全身，但手足心通常无皮疹
C.
高热退出疹
D.
发热数小时到1天出疹，分批出现，向心性分布，以躯干、头、腰部多见
E.
玫瑰红色融合性斑丘疹，先分布于鼻翼两侧，1～2天蔓延至全身
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【简答题】J710 1#和3#电压为+B,2#为10V,5#为0V, 故障点: ;
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【单选题】18what is the action that a GMDSS radio operator should take when a DSC distress alert is received?
A.
No action is necessary, as the DSC control unit will automatically switch tothe NBDP  follow-on communications frequency.
B.
The operator should immediately set continuous watch on the radiotelephone frequency that  is associated with frequency band on which the distress alert was received.
C.
The operator should immediately set continuous watch on VHF Channel 70.
D.
The operator should immediately set continuous watch on the NBDP frequency Lhat is asso- ciated with frequency band onwhich the distress alert was received.
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【单选题】The following( )is a correct description of operator's precedence
A.
operator < arithmetic operator < assignment operator < logical operator
B.
logical operator < relational operator< arithmetic operator< assignment operator
C.
assignment operator< logical operator
D.
arithmetic operator
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【单选题】During which condition should the operator of a pedestal crane shutdown operations ________．
A.
Bunkering barge alongside
B.
Potable water spill on deck
C.
Crane hydraulic hose bursts
D.
Trim greater than 4 feet
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【简答题】J710 1#和3#电压为+B,2#为0V,5#为+BV , 故障点: 。
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【判断题】卡诺热机的效率只与两个热源的温度有关而与工作物质无关。
A.
正确
B.
错误
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【单选题】Which action（s）should the operator of a pedestal crane take if crane control is lost （）.
A.
Let go of both control levers and return to neutral position
B.
Press the emergency stop
C.
Notify the mate on watch
D.
All of the above
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【单选题】铁磁谐振过电压一般为( )倍相电压 (
A.
)1～1.5 (
B.
)5 (
C.
)2～3 (
D.
)1～1.2
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【简答题】卡诺定理:1、再两个不同温度的热源之间工作的任意热机,以( )的效率为最大。2、卡诺热机的效率只与( )有关,而与( )无关。
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【简答题】J710 1#和3#电压为+B,2#和5#为0V,故障点: ;
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相关题目：
【简答题】J710 1#和3#电压为+B,2#为10V,5#为0V, 故障点: ;
查看完整题目与答案
【单选题】18what is the action that a GMDSS radio operator should take when a DSC distress alert is received?
A.
No action is necessary, as the DSC control unit will automatically switch tothe NBDP  follow-on communications frequency.
B.
The operator should immediately set continuous watch on the radiotelephone frequency that  is associated with frequency band on which the distress alert was received.
C.
The operator should immediately set continuous watch on VHF Channel 70.
D.
The operator should immediately set continuous watch on the NBDP frequency Lhat is asso- ciated with frequency band onwhich the distress alert was received.
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【单选题】The following( )is a correct description of operator's precedence
A.
operator < arithmetic operator < assignment operator < logical operator
B.
logical operator < relational operator< arithmetic operator< assignment operator
C.
assignment operator< logical operator
D.
arithmetic operator
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【单选题】During which condition should the operator of a pedestal crane shutdown operations ________．
A.
Bunkering barge alongside
B.
Potable water spill on deck
C.
Crane hydraulic hose bursts
D.
Trim greater than 4 feet
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【简答题】J710 1#和3#电压为+B,2#为0V,5#为+BV , 故障点: 。
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【判断题】卡诺热机的效率只与两个热源的温度有关而与工作物质无关。
A.
正确
B.
错误
查看完整题目与答案
【单选题】Which action（s）should the operator of a pedestal crane take if crane control is lost （）.
A.
Let go of both control levers and return to neutral position
B.
Press the emergency stop
C.
Notify the mate on watch
D.
All of the above
查看完整题目与答案
【单选题】铁磁谐振过电压一般为( )倍相电压 (
A.
)1～1.5 (
B.
)5 (
C.
)2～3 (
D.
)1～1.2
查看完整题目与答案
【简答题】卡诺定理:1、再两个不同温度的热源之间工作的任意热机,以( )的效率为最大。2、卡诺热机的效率只与( )有关,而与( )无关。
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【简答题】J710 1#和3#电压为+B,2#和5#为0V,故障点: ;
查看完整题目与答案