以下哪种情况应该行支气管镜检查()。
A.急性支气管肺炎
B.大咯血
C.不明原因的肺不张
D.胸腔积液
E.纵隔肿瘤
参考答案:C
The boy has been looking forward to____his present for a whole day, so now he is
looking forward to____whether his father is back home. [ ]
A. see; seeing
B. seeing; seeing
C. seeing; see
D.see; see
根据《标准施工招标文件》的规定。下列合同事件中,承包商可以索赔工期、费用和合理利润的有()。
A.发包人增加合同工作内容
B.发包人提供图纸延误
C.异常恶劣的气候条件导致停工
D.承包人为工程合理施工所必需的暂停施工
E.发包人原因的试运行失败后,承包人采取措施保证试运行合格