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【单选题】
蛋白质颗粒表面的水化层和( )是蛋白质亲水胶体稳定的两个因素A.
异性电荷
B.
同性电荷
C.
同种电荷和异种电荷
D.
同种电荷或异种电荷
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反馈参考答案：
举一反三
【简答题】9. I can make a
salad. I can set the table. I can ____ the
table.
【单选题】听力原文：I know the number you have mentioned that can be divided by 8 and also by 9. What is the exact number?
A.
81.
B.
48.
C.
104.
D.
72.
【单选题】如图所示,一等边三角形薄板置于光滑水平面上,开始处于静止状态,当沿其三条边分别作用有大小相等的力 F1 、 F2 、 F3 后,薄板将
A.
静止
B.
移动
C.
转动
D.
又移又转
【单选题】—I've got some wonderful news.We have been invited to the palace ball. —Really？______.
A.
I don't believe so
B.
I believe not
C.
I can't believe it
D.
I don't believe it
【单选题】I don't need your help. I can finish the work by _______________.
A.
me
B.
mine
C.
I
D.
myself
【简答题】— Is it going to be warm next week? — _________________. A: Yes, it is B; I don't believe it C; No, it hasn't
【单选题】—Can I know the fees for the courses? —_________
A.
I have no idea.
B.
500 yuan a month.
C.
It’s very expensive.
D.
You’d better come here in person.
【单选题】如图所示，一等边三角形薄板置于光滑水平面上，开始处于静止状态，当沿其三条边分别作用有大小相等的力F1、F2、F3后，薄板将【图片】
A.
静止
B.
移动
C.
转动
D.
又移又转
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