更多"[单选题]It’ s thatwe will never forge"的相关试题:
[单选题]
We all know that good businessmen never _____ a project without thinking.
A.
Fly at
B.
Line with
C.
Dive into
D.
Radiate from
[单选题]I‘ ve never himbefore.
A. heardof
B. hear from
C. heardto
D. hear of
[简答题]Audrey never let her sadness overcome her or jeopardize her hope for a brighter future.
[判断题] Americans never use the left hands for greeting,eating,drinking and smoking.
A.正确
B.错误
[单选题]
Why will a switch never learn a broadcast address?
A. Broadcast frames are never sent to swiches.
B. Broadcast addresses use an incorrect format for the switching table.
C. A broadcast address will never be the source address of a frame.
D. Broadcasts only use network layer addressing.
E. A broadcast frame is never forwarded by a switch.
[单选题] He hurried home, never once looking back to see if he ____.
A. was being followed
B. had been followed
C. was following
D. followed
[单选题] I can never work as a technician since I am not good at maths and science stufF.
A. 因为我不擅长数学和科学,所以我只能当一名技师。
B. 因为我不擅长数学和科学,所以我不可能当一名技师。
C. 自从我不喜欢数学和科学开始,我就不可能当一名技师。
D. 自从我不喜欢数学和科学开始,我就只能当一名技师。
[单选题] I’ve never seen ______ many people here before.
A. such
B. too much
C. enough
D. so
[单选题] There is ______ much rice here. We’ll never finish it.
A. such
B. enough
C. too
D. to
[单选题] She ______ never ______ snow.
A. has; saw
B. has; seen
C. did; see
D. have; seen
[单选题]-______he ever______abroad? - No, never.
A. Did, go
B. Is, been
C. Has, been
D. Has, gone
[判断题]水准仪按结构分为S0.5、S1、S3、S10四个等级。 ( )
A.正确
B.错误
[简答题]请简述客室车门行程开关S1、S2、S3、S4在安全互锁回路中的连接关系。
[判断题]JSBXC-850型继电器通过不同的接线,可获得180S、30S、13S、3S等4种延时。 ( )
A.正确
B.错误
[单选题]音响信号，长声为（）s，短声为（）s，间隔为（）s。重复鸣示时，须间隔（）s以上。（ ）
A.2、0.5、1、5
B.3、1、1、5
C.2、0.5、1、3
D.3、1、1、3
[判断题]听觉信号，长声为3 s，短声为2s，音响间隔为1 s。
A.正确
B.错误
[判断题]听觉信号,长声为3s,短声为1s,音响间隔为2s。( )
A.正确
B.错误
