尼克酸缺乏的典型症状有()
A.暗适应能力下降
B.皮肤炎
C.神经炎
D.腹泻
E.痴呆
参考答案:B, D, E
The students were_______to learn that the new teaching methodat the meeting would be carried out.
A.pleased; put forward
B.pleasing; putting forward
C.pleased; putting forward
D.pleasing; put forward
抢救时,胸外心脏按压有效的标志是
A.桡动脉搏动
B.股动脉搏动
C.肱动脉搏动
D.颈、股动脉搏动
E.颈、肱动脉搏动