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【单选题】
许多同学喜欢吃烧烤食物，烧烤常用木炭做燃料。下列叙述中，正确的是 [ ]A.
在室内烧烤时要注意通风
B.
烧烤有时看到的黄色火焰是木炭燃烧产生的
C.
烧烤时扇炭火是为了降温
D.
用含硫的焦炭代替木炭不会影响人体健康
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举一反三
【简答题】如果a≠0且a、b互为相反数，则在下列各组数中不是互为相反数的一组是（ ） A． 3 a 与 3 b B． a 2 与 b 2 C．3a与3b D．a+1与b-1
【单选题】Some of our industrial products have been said advanced level.
A.
to reach
B.
to be reaching
C.
to have reached
D.
to have been reaching
【单选题】We might say our products have ______ warm reception everywhere and hope they will be able to your requirements.
A.
met, meet with
B.
met with, meet
C.
met, met with
D.
met with, met
【单选题】—Perhaps you have heard our products. Would you like to know something more? —_________________
A.
Sure. Go ahead.
B.
I don’t need anything.
C.
I‘ve heard lot about you.
【单选题】如果a＞b，且c＜0，那么在下面不等式中： （1）a+c＞b+c；（2）ac＞bc；（3） - a c ＞- b c ；（4）ac 2 ＞＜bc 2 ．成立的个数是（ ）
A.
1
B.
2
C.
3
D.
4
【单选题】The market competition is fierce, but our products have great advantage ______ quality and price.
A.
in place of
B.
in view of
C.
in case of
D.
in terms of
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