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【单选题】
在JavaScript中,下列哪段代码能够在1秒之后执行表达expression?( )A.
window.setTimeout(1000，expression)；
B.
window.setTimeout(expression，1)；
C.
window.setTimeout(1，expression)；
D.
window.setTimeout(expression，1000)；
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举一反三
【简答题】When we mention psychological addiction, we always use the term of ______ to describe a drub user' thought.
【简答题】范德华力包括______、______、______三种。
【简答题】范德华力包括 、 、 。
【简答题】——The police have caught the murderer. ——Yes, and he admitted ____his boss on a rainy night seven years ago. A. to kill B to have killed C having killing D have been killed
【单选题】— Have you got any information about your missing dog from the police? — No. I ______. The police say they’ll let me know when there is any news.
A.
waited
B.
was waiting
C.
have waited
D.
am waiting
【单选题】The police have power to arrestbad people by 1aw ．
A.
． the ； the
B.
．不填； the
C.
．不填；不填
D.
． the ；不填
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