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【单选题】
Analyze the following statement, and then choose one of the options that you think is best to use in academic writing:There are some signs that the drug works on the coronavirus, some very strong signs.
A.
According to a small number of recent reports, this drug might assist in reducing the symptoms caused by the virus.
B.
According to some recent reports, this drug might assist in somehow reducing the symptoms caused by the virus.
C.
According to some recent reports, this drug could somehow assist in reducing the symptoms caused by the virus.
D.
According to some recent reports, it is reasonable to argue that this drug should assist in reducing the symptoms caused by the virus.
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参考答案:
举一反三
【多选题】X=1011,Y=-0.1011,则: [X]补= (1) ; [Y]补= (2) ;
A.
0,1011
B.
1,1011
C.
0.0101
D.
1.0101
【单选题】通信双方在通信过程中始终占用该信道,这样的交换方式属于
A.
电路交换
B.
报文交换
C.
分组交换
D.
信元交换
【简答题】黄大豆1号的合约的代码是“a1011”,“a”代表期货品种的黄大豆1号,“1011”代表( )。
【多选题】X=1011,Y=-0.1011,则: [X]移= (1) ; [Y]移= (2) ;
A.
0,1011
B.
1,1011
C.
0.0101
D.
1.0101
【判断题】多电子原子中,电子的能量只取决于主量子数n。
A.
正确
B.
错误
【判断题】在多电子原子中,电子的能量只取决于主量子数 n
A.
正确
B.
错误
【简答题】火焰加热矫正时所使用的氧乙炔火焰应采用( )焰。
【简答题】改正下列竖式。 (1)     162 +   959 1011 (2)       404 -   186 318
【多选题】X=1011,Y=-0.1011,则: [X]原=__(1)__; [Y]原=__(2)__;
A.
0,1011
B.
1,1011
C.
0.1011
D.
1.1011
【简答题】若(a+1) 2 +|b-1011|=0,则1010-a b =______.
参考解析:
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