()不属于高度调整阀试验项目。
A.无感带区试验
B.作用延迟时间试验
C.极限作用试验
D.空气流量试验
参考答案:C
The new stadium being built for the next Asian Games will be _____ the present one.[ ]
A. as three times big as
B. three times as big as
C. as big as three times
D. as big three times as
下列有关Java语言的叙述中,正确的是( )。
A.可以有2个以上package语句
B.可以有2个以上import语句
C.可以有2个以上public类
D.只能有1个类定义