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【单选题】
在一个源文件f1中定义有全局变量,如:int a=5;,则处于同一源程序的另一个源文件f2要想使用f1中的a,可以在f2中进行说明,正确的说明方式是( )。A.
static int a;
B.
extern int a;
C.
static int a=7;
D.
extern int a=7;
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【简答题】在预应力混凝土构件制作的后张法张拉施工中，对预应力筋张拉时，构件混凝土强度应符合设计要求；当设计无要求时，其强度应保证（ ）。
【单选题】Where does David's uncle live?
A.
David's uncle lives in Zhengzhou.
B.
David's uncle lives in Beijing.
C.
David's uncle lives in Qingdao.
D.
David's uncle lives in Hainan Island.
【简答题】情景交际。 David: Where would you live if you could choose? Jane: It's very difficult to say. 1 David: What would you do if you lived in Paris? Jane: 2 David: You'd soon get tired of it. 3 Jane: I wouldn't...
【单选题】Why did Donna come to the town where David lives?
A.
For a meeting.
B.
To see David.
C.
On holiday.
【单选题】— David, where have you ______ recently? — I have ______ to Shanghai with classmates.
A.
been, gone
B.
gone, gone
C.
gone, been
D.
been, been
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