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【多选题】
下列( )通风空调系统组件可采用难燃材料。
A.
通风空调系统的管道
B.
接触腐蚀性介质的风管
C.
接触腐蚀性介质柔性接头
D.
风管的绝热材料
E.
风管用于加湿器的加湿材料、消声材料和粘结剂
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举一反三
【单选题】I’ll try my best to _____ the lost time.
A.
make out
B.
make up of
C.
make up
D.
make up for
【单选题】在我国,跳绳运动最早的文献记载是在()朝代
A.
北齐
B.
清朝
C.
南宋
D.
唐朝
【单选题】下列最甜的糖是
A.
乳糖
B.
蔗糖
C.
果糖
D.
淀粉
【单选题】函数y=sinx(3sinx+4cosx)(x∈R)的最大值为M,最小正周期为T,则有序数对(M,T)为 [     ]
A.
(5, )
B.
(4, )
C.
(﹣1,2 )
D.
(4,2 )
【单选题】函数y=sinx的定义域为[a,b],值域是 [-1, 1 2 ] ,则b-a的最大值与最小值之和是(  )
A.
4 3 π
B.
C.
8 3 π
D.
【单选题】How can a student make good notes?
A.
Try to make it clearly.
B.
To make it not only in the lecture course, but also before class.
C.
Try to listen a lot and write down the main points.
D.
All of the above.
【简答题】try [traɪ]
【简答题】Do not try to make the tagline trendy, because such lined are often ______.
【单选题】You should ______ this opportunity and try to make a good impression on them.
A.
make advantage of
B.
have advantage
C.
take advantage of
D.
find advantage of
【单选题】下列最甜的糖是
A.
乳糖
B.
蔗糖
C.
果糖
D.
麦芽糖
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