山西焦煤《“三项建设”实施办法》中规定运输斜坡及车场经常保持清洁，做到（）。
A、无杂物
B、无碎石
C、无淤泥
D、无积水
参考答案：A, C, D
China's youths topped a list of calculating abilities , but ranked last on _____ imagination and 5th
from _____ bottom for creativity, according to an education survey of 21 countries and regions.[ ]
A . the ; the
B. an; the
C. /;/
D. /; the
治疗产后发热血虚证，应首选
A．五味消毒饮B．生化汤C．补中益气汤D．荆防四物汤E．银翘散
