如图为年初日环食在威海境内完美展示的“金环入海”奇观．观测日食不能用肉眼直接对着

种设备进行报废处理后，使用单位应向什么部门报告？

一般情况下，舒张压高低主要反映（）

A．每搏量变化

B．心率变化

C．外周阻力变化

D．主动脉和大动脉弹性降低

E．循环血量和血管系统容量比例变化

意识水平下降的意识障碍包括（）

A.意识模糊

B.昏迷

C.昏睡

D.嗜睡

E.谵妄

He eats______ food, so he is ________ fat.

A．much too; too much

B．much too; too many

C．too much; much too

D．too much; many too

Children under sixteen are not permitted to participate in such kind of activities _____ bad for their

mental development. [ ]

A. as is

B. as are

C. that are

D. that they are