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【判断题】
顺序阀与单向阀并联，可以组成平衡阀，起着限制重物下降速度的作用。A.
正确
B.
错误
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举一反三
【单选题】It was so bright outdoors that we could see clearly what was happening through the curtains ________ before the window.
A.
hanged
B.
hung
C.
hanging
D.
hang
【单选题】So bright ____ that the flowers were bright as by day.
A.
the moon is
B.
is the moon
C.
moon was
D.
was the moon
【简答题】mblock中冒泡排序中使用的链表在哪个积木块内?
【简答题】So fire engines and ambulances in some advanced countries are now rushing around in bright yellow colors that stop traffic dead. (Passage 1)
【单选题】The boy was so bright and _______.
A.
amateurish
B.
animated
C.
animator
D.
animation
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