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【多选题】
脚手板的铺设应符合下列哪些规定（）。A.
脚手板应铺满、铺稳，离开墙面150-200mm
B.
采用对接或搭接应符合规范第6.2.3条的规定，脚手板探头应用直径3.2mm的镀锌钢丝固定在支承杆件上
C.
在拐角、斜道平台处的脚手板，应与横向水平杆可靠连接，防止滑动
D.
自顶层作业层的脚手板往下计，宜每隔15m满铺脚手板
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【单选题】When they entered the exhibition hall, they were surprised ______ the rare beauty of the pictures.
A.
at
B.
of
C.
to
D.
with
【单选题】Finally, the team reached the top of the mountain, they found some rare plants.
A.
why
B.
which
C.
where
D.
as
【单选题】Thirty years ago, most teenagers had bicycles, but now they are comparatively rare. 【B1】 , motor scooters (小型摩托车) are much more common, 【B2】 , this may seem a sign of progress but 【B3】 the change is n...
A.
At the other end
B.
On the contrary
C.
On the other hand
D.
In addition
【判断题】believe it or not (1).mp3: They said I had a rare bone
disease, and there was something they could do
A.
正确
B.
错误
【单选题】Thirty years ago, most teenagers had bicycles, but now they are comparatively rare. 【C1】______ , motor scooters(小型摩托车)are much more common. 【C2】______ , this may seem to be a sign of progress but 【C3】...
A.
At the other end
B.
On the contrary
C.
On the other hand
D.
In addition
【单选题】According to this passage, turtles are of great importance in China because they are
A.
rare
B.
the most expensive in food markets
C.
imported into China
D.
used to cure certain diseases
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