《红楼梦》的版本分为“脂本”与()两大系统。
参考答案:程本
The schedule, originally_____out last week, had to be cancelled because of the unexpected snow storm.
A.carried
B.to be carried
C.being carried
D.was carried
韶山9型电力机车同一轴上各个轮荷重和两个轮平均轮荷重之差,不超过平均轮重的()。
A.±4%
B.±6%
C.±8%
D.±10%