6个月内小婴儿多见,以阵发性喘憋为主要症状的肺炎
A.肺炎支原体肺炎
B.腺病毒肺炎
C.呼吸道合胞病毒肺炎
D.金黄色葡萄球菌肺炎
E.麻疹病毒肺炎
参考答案:C
Peter was so excited _________ he received an invitation from his friend to visit Chongqing.
A.where
B.that
C.why
D.when
铝芯绝缘导线或电缆的连接与封端应采用压接、熔焊或钎焊,当与电气设备(照明灯具除外)连接时,应采用( )接头。
A.压接; B.熔焊; C.适当的过渡; D.焊。