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【判断题】
唾液由唾液腺分泌,pH约为6.8,其成分中含有99.5%的水
A.
正确
B.
错误
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参考答案:
举一反三
【单选题】Our goal is to fulfill the needs of our clients, __ challenging they may be.
A.
however
B.
whenever
C.
wherever
D.
whatever
【单选题】如果分配数列把频数换成频率,那么方差( )
A.
不变
B.
增大
C.
减少
D.
无法预期
【单选题】______ for your help, We’d never have been able to get over the difficulties.
A.
Had it not
B.
Had it not been
C.
If it were not
D.
If we had not been
【单选题】如果分配数列把频数换成频率那么方差( )
A.
不变
B.
增大
C.
减小
D.
无法預期其变化
【简答题】所谓账务处理程序,是指会计凭证、会计账簿、会计报表相结合的方式,包括会计凭证和账簿的种类、格式,会计凭证与账簿之问的联系方法,由原始凭证到编制记账凭证、登记明细分类账和总分类账、编制会计报表的工作程序和方法等。( )
【单选题】We had a(n) ______ with him about this problem last night.
A.
explanation
B.
impression
C.
exhibition
D.
discussion
【判断题】( )乳香药材加水研磨能形成黄棕色的乳浊液。
A.
正确
B.
错误
【单选题】如果分配数列把频数换成频率,那么方差()
A.
不变
B.
增大
C.
减少
D.
无法预期变化
【简答题】Grandfather / old / in our village
【单选题】—Don’ t _______our hopes. Things will be fine soon. —Yes. We should learn to be brav
A.
5. —Don’ t _______our hopes. Things will be fine soon. —Yes. We should learn to be brave when we are in difficulties. A. cheer up
B.
give up
C.
clean up
D.
turn up
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