煤气站放散管至少应高出厂房顶()m以上。
A.1
B.2
C.4
D.8
参考答案:C
口腔念珠菌病病理特点不包括()
A.增厚的不全角化上皮
B.白色念珠菌丝侵入形成上皮斑
C.微脓肿
D.锯齿样上皮钉突
E.组织局部淋巴细胞浸润
The UK government claims that the economy is improving, but this survey suggests __ .[ ]
A. otherwise
B. therefore
C. moreover
D. meanwhile