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【单选题】
To the nearest million, how many more students were enrolled in school—both public and private, prek-12—in 1970 than in 1988?A.
3,000,000
B.
6,000,000
C.
10,000,000
D.
44,000,000
E.
51,000,000
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【单选题】若想用uchar代换程序中的unsigned char则所使用的语句为：;
A.
#define uchar unsigned char
B.
#define uchar unsigned char;
C.
#define unchar unsinged char
D.
#define unchar unsigned char
【简答题】研磨的工艺参数有:____、____、____、____。
【单选题】—Ben hasn't been to such a beautiful place before, has he? —______. [ ]
A.
Yes, he hasn't
B.
Yes, he has
C.
No, he haven't
D.
No, he has
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