—Mr Smith, I wonder if I could take the

题型:选择题

问题:

—Mr Smith, I wonder if I could take the Friday off?

—_______? It’s a bit difficult with so many people away on holiday, you know.

A.Why are you doing so 

B.Do you really have to

C.Where are you going

D.Do you feel it necessary

考点:情景交际
题型:选择题

两个相似多边形的面积比是9:16,其中小多边形的周长为36cm,则较大多边形的周长为[ ]

A.48cm

B.54cm

C.56cm

D.64cm

题型:选择题

下列哪项是孕妇血液的正常生理变化?()

A.处于高凝状态

B.血沉增快

C.体内白细胞总量增多

D.红细胞总量减少

E.血容量增多

题型:选择题

(1).gt.()
(2).lin.()
(3).garg.()
(4).muc.()

A.漱口剂

B.滴剂

C.擦剂

D.胶浆剂

题型:选择题

板式楼梯的优缺点有哪些?

题型:选择题

转炉冶炼处于高C期,增大供氧量能提高脱碳速度。

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