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【判断题】
水准仪的粗略整平,是指让圆水准气泡居中A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】要设置文本框TextBox控件只能显示数据,而不能编辑数据,可以将其( )属性设置为true。
【单选题】How many X chromosomes are there when 2 Barr bodies being watched:( )
A.
1;
B.
2;
C.
3;
D.
4;
【单选题】Suppose that a diploid cell contains 8 chromosomes (2n = 8). How many different combinations in the gametes are possible?
A.
2
B.
4
C.
8
D.
16
E.
64
【单选题】In man, the body cells contain how many pairs of chromosomes?
A.
Twenty-two.
B.
Twenty-three.
C.
Twenty-six.
D.
Forty-six.
【单选题】A newly discovered species of dung beetle has 2n = 16 chromosomes. It mates with a closely related beetle species that has 2n = 12 chromosomes. How many chromosomes would there be in an allotriploid b...
A.
13 or 17
B.
19 or 25
C.
18 or 24
D.
20 or 22
E.
36 or 48
【单选题】In man, how many pairs of chromosomes do body cells contain?
A.
Twenty-two.
B.
Twenty-three.
C.
Twenty-six.
D.
Forty-six.
【单选题】文本框和编辑框的区别是________。
A.
文本框能多行显示，而编辑框不能多行显示
B.
文本框不能多行显示，而编辑框能多行显示
C.
文本框和编辑框都能多行显示
D.
文本框和编辑框都不能多行显示
【单选题】人体有多少对染色体How many pairs of chromosomes does the human body have
A.
22
B.
23
C.
44
D.
46
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