从麻醉角度衡量甲亢最危险的并发症是（）
A.动脉粥样硬化
B.心动过速
C.心功能代偿不全
D.代谢增高
E.心律不齐
参考答案：C
The first use of atomic weapons was in 1945, and their power ________ increased enormously ever since.
A．is
B．was
C．has been
D．had been
应与黑热病相鉴别的疾病有（）
A.疟疾
B.肝硬化
C.白血病
D.伤寒
E.慢性血吸虫病
