在核反应方程式中[ ]
A．X是中子，k=9
B．X是中子，k=10
C．X是质子，k=9
D．X是质子，k=10
答案：B
Varieties of programmers in the TV station ________ many different types of interest and taste
among the public.[ ]
A. cater to
B. appeal to
C. apply to
D. adjust to
个人耐用消费品贷款起点一般为人民币（）元。
A.1000
B.2000
C.5000
D.10000
中[ ]
中[ ]