可诱发肝病患者得静脉栓塞性疾病的是（ ）
A．沙利度胺
B．雌激素
C．氨基蝶呤
D．甲基多巴
E．达卡巴嗪
参考答案：D
172. Since the disaster of September 11, American economy has got into a jam. The underlined part probably means _____.
A．had a lot of trouble
B．become very good
C．got into a stop
D．developed rapidly
甲板机械低温工况启动时，应：（）。
A.预热后启动
B.多次点动启动
C.手动盘车后启动
D.A+B
