下列不是内伤腰痛特点的是
A.腰部隐痛B.病程缠绵C.起病隐袭D.腰痛明显
参考答案:D
I have a lot before the exam so I can't watch too much TV now.
A.to be done
B.doing
C.to do
D.do
在下列实验操作的图示中,正确的是 [ ]
A.点燃酒精灯
B.取用液体药品
C.加热液体
D.称取氯化钠固体