There _____ many new words in Section. It's very difficult.[ ]
A. are
B. aren't
C. is
答案:A
写出下列词语的反义词。
成功——( )夸奖——( )
伟大——( )急忙——( )
下列( )选项是short型数据的取值范围。
A.-128~+127
B.-32768~+32767
C.-2147483648~+2417483647
D.-3.40282347E38~+3.40282347E38