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问题
填空题
|2-
5
|=______.
答案
∵2-
5
<0,
∴|2-
5
|=
5
-2.
故本题的答案是
5
-2.
填空题
选择合适的介词填空。
on in inside of for
1. We make a big ball ____________ snow.
2. They put it ____________ the top.
3. I have two sticks ____________ his arms.
4. What else do you do ____________ spring?
5. Let's go ____________ now!
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单项选择题
属二氢叶酸还原酶抑制剂的是
A.异烟肼
B.甲氧苄啶
C.诺氟沙星
D.氟康唑
E.磺胺甲噁唑
查看答案