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【单选题】
材料磁导率用来描述:
A.
材料磁化的难易程度
B.
零件中磁场的强度
C.
零件退磁需要的时间
D.
保留磁场的能力
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举一反三
【单选题】PLC内部元件T具有( )功能。
A.
输入
B.
计数
C.
计时
D.
输出
【单选题】Given the following ALTER SEQUENCE statement: ALTER SEQUENCE myseq RESTART WITH 0 INCREMENT BY 1 NO MAXVALUE CACHE 5 ORDER Assuming that the sequence had reached a value of 100 prior to the RESTART, w...
A.
The next value will be 0 and the sequence will never use the values 101 to 105.
B.
The next value will be 101 to ensure uniqueness between existing and newly generated sequence values.
C.
Previously cached values are retained by DB2, and after the restart, will be used for values 101 to 105.
D.
The next value will be 0 and DB2 will not ensure uniqueness between existing and newly generated values.
【单选题】下列选项中,用于检测发动机进气量的传感器是
A.
氧传感器
B.
节气门位置传感器
C.
进气歧管压力传感器
D.
冷却液温度传感器
【单选题】The order No.105 is so urgently reuqired that we have to ask you to __________shipment.
A.
quicken
B.
fasten
C.
speed up
D.
put up
【单选题】PLC内部元件C具有( )功能。
A.
输入
B.
计数
C.
计时
D.
输出
【多选题】下面哪句可用于买方催促卖方尽快发货?(多选题)
A.
The order No.105 is so urgently required that we have to ask you to speed up shipment
B.
Shipment should be made before October; otherwise we are not able to catch the season
C.
We can effect shipment in December or early next year at the latest
D.
We insist on immediate delivery, otherwise we have to cancel the order
【多选题】(3-3) 在 下列的类 中 选出 FileterOutputStream 类的子类( )
A.
(A) PipedOutputStream
B.
(B) DataOutputStream
C.
(C) BufferedOutputStream
D.
(D) Prin t Stream
【判断题】同步带是指环路能够保持锁定的范围。
A.
正确
B.
错误
【判断题】节气位置传感器用于检测发动机的节气门开度。
A.
正确
B.
错误
【多选题】中国在长期斗争中形成的三大优良作风是
A.
理论联系实际
B.
一切从实际出发,实事求是
C.
批评与自我批评
D.
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