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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】设有以下程序段 struct MP3 { char name[20]; char color; float price; } std, *ptr; ptr=&std; 若要引用结构体变量 std 中的 color 成员,写法错误的是( )。
A.
. std.color
B.
. ptr->color
C.
. (*ptr).color
D.
. std->color
【单选题】关于widget(组件)属性的写法,下面哪个是正确的?( )
A.
android:id="@id/tv_username"
B.
android:layout_width="match_content"
C.
android:src="@+drawable/icon"
D.
android:gravity="center"
【单选题】数学表达式在VB中的正确写法是()。
A.
(x+y)(x-y)/Abs(x)+y*y
B.
(x+y)(x-y)/(Abs(x)+y*y)
C.
(x+y)*(x-y)/(Abs(x)+y*y)
D.
(x+y)*(x-y)/(Sqr(x)+y^2)
【单选题】When I was studying at Yale, some phenomena puzzled me greatly. I found that Chinese students or Asian students were very polite in class while American students often interrupted the professor, askin...
A.
talkative
B.
conventional
C.
creative
D.
imaginative