下列伪指令中不可以用来定义变量的是()。
A.BYTE
B.DW
C.DWORD
D.AT
参考答案:B
If you already have health insurance,the only change ________ you'll see under my plan is lower premiums.
A.what
B.which
C.why
D.不填
间二甲苯的一氯代物的同分异构体有( )
A.4种
B.3种
C.2种
D.1种