皮皮学,免费搜题
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搜题
【多选题】
救生软梯使用时要注意()
A.
视情加挂副梯
B.
必须与挂钩梯联合使用
C.
选好固定支点
D.
必须挂靠牢固
拍照语音搜题,微信中搜索"皮皮学"使用
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举一反三
【单选题】中国科学引文数据库提供的检索方式有()。
A.
来源文献检索和引文检索
B.
主题检索和引文检索
C.
关键词检索和引文检索
D.
分类检索和引文检索
【单选题】The guy tried to run away but the policeman caught him by ___ the collar of his coat.
A.
stretching
B.
grabbing
C.
filtering
D.
spotting
【单选题】The guy tried to run away but the policeman caught him by ___ the collar of his coat.
A.
running
B.
grabbing
C.
lingering
D.
memorizing
【判断题】【课堂练习 3 】对于库存现金和银行存款之间相互划转的经济业务只编制收款凭证。 ( )
A.
正确
B.
错误
【判断题】科学的检索方式:主题词索引+引文索引
A.
正确
B.
错误
【单选题】根据某城市电话网400次通话调查得知每次通话持续时间为5分钟,标准差为2分钟,请以95%(t=1.96)的把握程度估计该城市每次通话的平均持续时间为()
A.
4.5-5.5分钟
B.
4.836-5.164分钟
C.
4.804-5.196分钟
D.
0-11分钟
【单选题】中国科学引文数据库提供的检索方式有( )。
A.
主题检索和引文检索
B.
分类检索和引文检索
C.
来源文献检索和引文检索
D.
关键词检索和引文检索,
【简答题】The guy tried to run away but the policeman caught him by the collar of his coat.
【单选题】The guy tried to run away but the policeman caught him by ( ) the collar of his coat.
A.
grabbing
B.
securing
C.
stretching
D.
dubbing
【单选题】The guy tried to run away but the policeman caught him by ( ) the collar of his coat.
A.
dubbing
B.
securing
C.
stretching
D.
grabbing
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