正常人体不能触到的脏器是（）。
A.腹主动脉
B.腰椎椎体
C.横结肠
D.乙状结肠
E.脾脏
参考答案：E
In the past, we often a mooncake several parts to enjoy it. [ ]
A. separated; from
B. divided; into
C. cuts: into
D. divided; from
雨期到来前，应检查手持电动工具漏电保护装置是否灵敏。工地临时照明灯、标志灯，电压不超过（）。
A.12V
B.24V
C.36V
D.48V
