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From: Steve Lenzer To: Louise Bernard Subject: Update from Brazil Date: 22 May Hi Louise, We're very lucky to have this construction contract in Brazil. It's a pity that I'm only here for a week, but that's business. Anyway, let me update you on my visit here. The construct of Belem Panorama is going well and guests will love it! Apart from some minor problems, everything is proceeding according to plan. They're now building the swimming pool on the 12th floor. The local staff are working very well with our management team. I'm working in Fortaleza today and tomorrow. The new shopping center is quickly taking shape: there are no problems and I think we're ahead of schedule. They're doing a great job here too. I'm flying back to Britain at the weekend, so I'll see you in the office on Monday. Best wishes, Steve
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【简答题】-7,15,38,63,92,( )
【简答题】-7,15,38,63,92,( )。
【单选题】光纤由三层材料组成,包层的作用是( )
A.
增强抗拉强度
B.
减低光折射率
C.
保护纤芯
D.
光信号接地
【简答题】杜鹃花类对土壤酸碱性的要求 __ ,适宜的pH值为 __ 。
【单选题】两组同学练投篮,第一组投了45个,第二组投了38个,还要投多少个才能达到100个?列式是 [     ]
A.
45-38=7(个)   100 -7 = 93(个)
B.
45+38 =83(个)100 - 83 =17(个)
【单选题】13光纤由三层材料组成,包层的作用是
A.
增强抗拉强度
B.
降低光折射率
C.
保护纤芯
D.
光信号接地
【单选题】《红楼梦》的作者曹雪芹,名 ,生于南京。
A.
B.
雪芹
C.
梦阮
D.
芹溪
【单选题】山茶花、杜鹃花、栀子花等适宜在酸性的土壤中生长,而仙人球适宜在中性偏碱的土壤中生长,现测得某土壤的pH约为7~8,该土壤适宜种植的花卉是(  )
A.
仙人球
B.
杜鹃花
C.
栀子花
D.
山茶花
【简答题】38÷7的商是(    ),余数是(    )。
【判断题】霉菌污染食品、在食品上繁殖与食品的种类和环境因素有关。
A.
正确
B.
错误
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