题目内容
混凝土运输应当尽量减少转运次数。
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大坝混凝土分层浇筑保证整体性要求的办法是避免产生冷缝。
RCC是指碾压混凝土,VCC是指常态混凝土。
混凝土从拌和地点到浇筑仓面的运输过程包括水平运输和垂直运输。
[音频]Dialogue 1:Woman:Lookattheseglasses,thisone'sevengot (1).Waiter:I'mverysorry,madam.I'llbringyou (2)rightaway.Dialogue 2:Woman:Thiscoffeeispractically (3).Waiter:Iamsorry,madam.I'llbringyou (4)straightawayDialogue 3:Woman:Waiter,thisjustwon'tdo.Thiswinesgot (5).Waiter:Sorry,sir.I'lltakeitback.Perhapsyouwouldliketochoose (6)instead.Dialogue 4:Man:Threeginandtonics,please.Waiter:I'msorry,sir.Butwe'renotallowedto (7)before12o'clockmidday.Wouldyoulikemeto (8)?Somecoffee?Dialogue 5:Woman:Waiter,thistable-clothisa (9),It'scoveredwith soup stains.Waiter:Oh,I'msosorry,madam.Itshouldhavebeenchangedbefore.Ifyou'll just (10).
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