下列病原微生物对磺胺类药物不敏感的是()
A.链球菌、肺炎球菌
B.肺炎球菌、化脓棒状杆菌
C.巴氏杆菌、沙门氏菌
D.结核杆菌、螺旋体
E.链球菌、巴氏杆菌
参考答案:D
输气工人对输气干线的管理应做到“七无”,下列不属于“七无”的是()
A、管线无锈蚀;
B、管内无积水;
C、管线绝缘层无损坏;
D、管线内介质无杂质
Class One and Class Five have many good students ,______will be surely admitted by key universities.
A.most of which
B.most of them
C. most of whom
D.of whom