仅靠防滑衬垫防止货物移动时，C62A、C62（N）的全车装载量不得超过（）t。
A、50
B、55
C、57
D、60
参考答案：B
Which of the following is tree about China a. The oil demand growth in the second quarter is 12.3%. b. Restrictions on trucking and economic growth will help reduce the oil demand. c. Extra refining capacity is also under tight control. d. The oil demand in the third quarter will fall by 9%.
配制盐酸吗啡注射液时，错误的做法是（）
A.通氮气或二氧化碳气体
B.加入EDTA
C.采用100℃流通蒸汽灭菌30分钟
D.加氧化剂
E.调pH为3.0~4.0
