更多"[单选题]It was______ I caught a cold."的相关试题:
[单选题]You've caught a cold. You'd better _______to school.
A.go
B.to go
C.not go
D.not to go
[单选题]图示节点中,I1=1A,I2=I3=3A,则I4等于( )。
A. 1A
B. 0A
C. -1A
D. 3A
（ ）
[填空题]若送电端轨道变压器BG1-50型变压器I1与I3、I2与I4均无电压说明 。
[判断题]波形图上病害波形超过I级或 （-I）界线又回落到I级或（-I）界线为一处病害。
A.正确
B.错误
[判断题]电动机负序电流保护,当I2>1.2I1时自动解除闭锁(I2负序电流,I1正序电流)
A.正确
B.错误
[判断题]电动机负序电流保护,当I2>1.2I1时闭锁负序电流保护(I2负序电流,I1正序电流)
A.正确
B.错误
[单选题]下面程序的运行结果是:main(){inti;for(i=1;i<=5;i++){if(i%2)printf("*");elsecontinue;printf("#");}printf("$");}
A.*#*#$
B.*#*#*#$
C.*#*#$
D.#*#*$
[判断题]电动机负序电流保护,当I2>1.2I1时开放负序电流保护(I2负序电流,I1正序电流)。
A.正确
B.错误
[判断题]电动机负序电流保护,当I2<1.2I1时闭锁负序电流保护(I2负序电流,I1正序电流)。
A.正确
B.错误
[单选题]经查定,自动闭塞区段I追﹦7 min、I到﹦7.2 min、I发﹦7.8 min、I通﹦8.1 min,该区段追踪列车间隔时间,I应取值为( )。
A.7 min
B.8.1 min
C.8 min
D.9 min
[判断题]电动机负序电流保护,当I2<1.2I1时自动解除闭锁(I2负序电流,I1正序电流)。
A.正确
B.错误
[单选题]某自动闭塞区间I追、I通、I到、I发分别为:7.9、8.2、8.4、8.6 min,该区间的I应取值为( )。
A.7.9 min
B.8.0 min
C.8.6 min
D.9 min
[判断题]CENTUM CS 3000系统中,I/O子系统可分为现场网络I/O(FIO) 及远程I/O(RIO) ( )。
A.正确
B.错误
[单选题] — I wonder if I could use your computer tonight?
— ______ I'm not using it right now.
A. Sure, here you are.
B. I don't know.
C. It doesn't matter.
D. Who cares?
[单选题] While I was in the university, I learned taking photos, ___________ is very useful now for me.
A. it
B. which
C. that
D. what
[单选题] I must leave now. I have an important meeting ________.
A. attend
B. to attend
C. attending
D. attended
