以下关于夏季皮炎临床表现的描述错误的有()
A.常对称性累及四肢伸侧和躯干
B.典型皮损为密集分布的丘疹和丘疱疹
C.自觉瘙痒
D.易出现糜烂和渗出
参考答案:D
You _____ pay too much attention to your reading skill, as it is so important. [ ]
A. can't
B. should
C. must
D. needn't
每道工序的装配都必须有()零件或()部件。它们是装配工作的基础。