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【单选题】
对两样率比较的四格表资料中，若有一个实际数为0，则________ 。A.
可直接用卡方检验
B.
不可用卡方检验
C.
还不能决定是否能用卡方检验
D.
必须用校正卡方检验
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【单选题】If I had known my life was going to _________ like this, I would have let them kill me.
A.
turn in
B.
turn on
C.
turn down
D.
turn out
【简答题】完形填空。 I ran across an old photo of him-my pet dog-the other day, thinking of some old things. He's been dead for 25years. His name was Rex. 1 was his favorite recreation. He had so much 2 in the water...
【简答题】兔肾是生成尿的器官，输尿管、( )和尿道则分别为输尿、贮尿和排尿的器官。
【简答题】肾是生成尿的器官，输尿管、膀胱和( )则分别为输尿、贮尿和排尿的器官。
【简答题】-4的相反数是______；______是10的相反数；______的相反数是1.1；______和0互为相反数．
【简答题】肾是生成尿的器官，( )、膀胱和尿道则分别为输尿、贮尿和排尿的器官。
【单选题】3 6. If I( ) the challenges at that time, I might not have started my own business. A) would know B) have known C) had known D) will know
A.
1
B.
2
C.
3
D.
4
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