C++中用3个保留字实现异常处理,除了try和catch外,还有( )。
A.if
B.class
C.throw
D.return
参考答案:C
He failed in the examination, ________ made his father very angry
A.which
B.it
C.that
D.what
到20世纪60年代,我国已经建成的军种有
①陆军②空军③海军④导弹部队⑤航天部队[ ]
A.①④⑤
B.①③⑤
C.①②③
D.③④⑤