需要限速运送的货物，计费标准为运价率加（）。
A.150%
B.180%
C.100%
D.120%
参考答案：A
The book ______ be Jim's because his name is on it. [ ]
A. cant
B. must
C. can't
该程序运行后屏幕显示的结果是( )。 S=0 FOR X=2 TO 10 STEP 2 S=S+X ENDFOR S RETURN
A．10
B．20
C．30
D．40
