更多"[单选题]I don’ tknowwhere Mr. White ha"的相关试题:
[单选题] Can you who has lostthe watch?
A. lookfor
B. lookup
C. find
D. findout
[单选题] You don’t have to invent something new or even launch a website to have asuccessful micro business
A.发明
B.想象
C.怀疑
D.前途
[单选题] I don’t like this blue scarf. Can you show me ______?
A. it
B. other
C. another
D. them
[单选题] I already bought some bread ______ you don’t need to get any.
A. but
B. so
C. since
D. because
[单选题] If you like your job, but don’t love it, try to figure ____ what’s missinG.
A. out
B. with
C. in
D. on
[单选题] I already bought milk, ______ you don’t have to get any.
A. so
B. but
C. although
D. due to
[单选题] Don’t forget ______ your teeth before you go to bed.
A. brush
B. to brush
C. brushing
D. brushed
[单选题] Don’t forget ______ “Thank you” when someone helps you.
A. talking
B. to talk
C. saying
D. to say
[单选题] We don’t have ______ flour. Can you buy some?
A. so
B. many
C. enough
D. too
[单选题] Did you hear him _____all that he has learned?
A.talking about
B.talk about
C.talked about
D.to talk about
[单选题] You’d better ______ the water until it has been boiled.
A. not to drink
B. not drink
C. not drunk
D. not drinking
[判断题]db2数据库启动的命令是（db2start），db2数据库停止的命令是（db2stop）。
A.正确
B.错误
[判断题]检测高压开关柜暂态地电压局部放电数据时，局部放电的实际dB值等于实测dB值减去背景噪声dB值。
A.正确
B.错误
[判断题]传输网管光功率门限值为0db-15db（ ）
A.正确
B.错误
[判断题]理论上传输收光功率为-14db至-1db。（ ）
A.正确
B.错误
[判断题]运行环境影响变压器的噪音,环境不利使变压器噪音增大5dB到7dB.
A.正确
B.错误
[判断题]国家标准规定工业企业噪声不应超过65dB，最高不能超过85dB。
A.正确
B.错误
[单选题]建筑施工场界环境噪声排放限值，昼间70dB ( )，夜间55dB ( )，夜间噪声最大声级超过限值的幅度不得高于 ( )
A. 15dB ( )
B. 20dB ( )
C. 25dB ( )
D. 30dB ( )
