具有下列一项表现者，可诊断为重度铅中毒（）。
A.腹绞痛
B.贫血
C.铅麻痹
D.中毒性周围神经病
E.神经衰弱腹胀，便秘
参考答案：C
Wherever he is, he makes ______ a rule to give his mother a call every day.
A．him
B．it
C．that
D．this
进4115-C1塔顶的洗涤甲醇设计温度是（）℃。
A、–40
B、–52
C、–57
D、-65
