答案查看网,轻松搜题/搜资源
登录
×
登录账号
记住密码
立即注册
忘记密码
×
注册
使用微信扫描二维码,获取账号密码后免费查看答案
前往登录
忘记密码
×
忘记密码
使用微信扫描下方二维码,即可找回您的账号密码
前往登录
立即注册
搜题/搜资源
【单选题】【消耗次数:1】
He found it hard to ( ) his studies in such a noisy environment.
①
devote to
②
dwell on
③
concentrate on
④
depend on
参考答案:
复制
纠错
相关题目
【单选题】
I found hard to concentrate.
①
this
②
that
③
it
④
what
查看完整题目与答案
【单选题】
、Although he had looked through all the reference material on the subject, he still found it hard to understand this point and her explanation only ____ to his confusion.
①
extended
②
amounted
③
added
④
turned
查看完整题目与答案
【单选题】
He was _____ his late twenties when he found his first job.
①
in
②
after
③
after
④
from
查看完整题目与答案
【单选题】
When we came back, he found his bicycle ____
①
was stolen
②
had stolen
③
had been stolen
④
is stolen
查看完整题目与答案
【单选题】
He studied hard in his youth, __________ contributed to his great success in later life.
①
that
②
it
③
what
④
which
查看完整题目与答案
【单选题】
When he came to,he found himself________on a chair,with his hands________back.
①
to sit;tying
②
sitting;tying
③
seating;tied
④
seated;tied
查看完整题目与答案
【单选题】
When he came back after an absence of 20 years, he found his hometown completely ____. ?
①
changing ?
②
to be changed ?
③
to change ?
④
changed ?
查看完整题目与答案
【单选题】
19. When he came to, he found himself _____ on a chair, with his hands _____ back.
①
to sit; tying
②
sitting; tying
③
seating; tied
④
seated; tied
查看完整题目与答案
【单选题】
As a result of his hard work, he has gained ______ to the Beijing University.
①
access
②
commitment
③
opportunity
④
reward
查看完整题目与答案
【单选题】
Everyone must() his share of the responsibility to protect the environment.
①
assumed
②
assume
③
assuming
④
assumptive
查看完整题目与答案
随机题目
【判断题】
三相异步电动机在进入回馈制动时,电动机转子的转速低于同步转速。
①
正确
②
错误
查看完整题目与答案
【判断题】
一台变压器原边电压u1,不变,副边接电阻性负载或接电感性负载,如负载电流相等,则两种情况下,副边电压也相等( )。
①
正确
②
错误
查看完整题目与答案
【判断题】
三相变压器的联结组别是指高压、低压绕组对应的线电动势之间相位差。
①
正确
②
错误
查看完整题目与答案
【判断题】
变压器在原边外加额定电压不变的条件下,副边电流大,导致原边电流也大,因此变压器的主要磁通也大( )。
①
正确
②
错误
查看完整题目与答案
【判断题】
使用电压互感器时其二次侧不允许短路,而使用电流互感器时二次侧则不允许开路( )。
①
正确
②
错误
查看完整题目与答案
【判断题】
电力拖动系统可以将电动机的转速运行在理想空载转速上。
①
正确
②
错误
查看完整题目与答案
【判断题】
变压器短路实验一般在高压边接仪表、低压边短路。
①
正确
②
错误
查看完整题目与答案
【判断题】
通常三相笼型异步电动机定子绕组和转子绕组的相数不相等,而三相绕线转子异步电动机的定、转子相数则相等.( )
①
正确
②
错误
查看完整题目与答案
【判断题】
变压器运行时,电路与磁路中的各个物理量都是直流量。
①
正确
②
错误
查看完整题目与答案
【判断题】
三相异步电动机的回馈制动是利用发电制动作用起到限制电动机转速的作用。
①
正确
②
错误
查看完整题目与答案