在当今中国，（）已成为党和政府治国理政的基本方式。
A.德治
B.人治
C.法治
D.人治和法治并重
参考答案：C
（）的产量，常标志着一个国家基本有机化工的发展水平。
A、乙烯
B、丙烯
C、苯
D、乙苯
The work we are doing is quite difficult, so your support will certainly________. [ ]
A. make any difference
B. make a difference
C. be very different
D. be of some difference
