【单选题】My wallet is nowhere to be found. I______ when I was on the bus.
B.
should have dropped it
【多选题】水下混凝土应采用导管法连续浇筑,不符合规定的是( )
A.
导管管节连接应密封、牢固,施工前应试拼并进行水密性试验
B.
钢筋笼吊放就位后应及时灌注混凝土,间隔不宜超过 4h;
D.
水下混凝土初凝时间应满足浇筑要求,水下浇筑时混凝土强度等级应按相关规范 要求提高
【简答题】My wallet is nowhere to be found.I_____it when I was on the bus. a.must drop b.should have dropped c.had dropped d.must have dropped
【单选题】事关项目未来成败的重要决策,要由项目业主决定。为了帮助业主做出明智决策,项目经理应该:
【单选题】碳钢是指碳的含量在()以下,并含有少量杂质(硅、锰、硫、磷)的铁碳合金。
【单选题】碳钢是指碳的含量在()以下,并含有少量杂质(硅、锰、硫、磷)的铁碳合金。
【单选题】事关项目未来成败的重要决策,要由项目业主决定。为了帮助业主做出明智决策,项目经理应该:
【单选题】My wallet is nowhere to be found. I () in the store.
C.
should have dropped it
D.
ought to have dropped it
【判断题】碳钢是指碳的含量在2.11%以下,并含有少量杂质(硅、锰、硫、磷)的铁碳合金。
【单选题】-What's the matter,Mary? You look ________! -My wallet is nowhere to be found,and my identification card (身份证) is in it. [ ]