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【单选题】
下列各种物质中属于同素异形体的是 ( )A.
金刚石和磁铁矿石
B.
Na 2 O 2 和 Na 2 O
C.
S 8 和 S 12
D.
I 2 和 I －
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【简答题】The sentence 'But we pay for our sensitivity.' in the third paragraph implies that______. A) we should pay a debt for, our feeling B) we have to be hurt when We feel something C) our pain is worth fee...
【简答题】调质处理是指______加______的热处理工艺，钢件经调质处理后，可以获得良好的______性能。
【单选题】Our ______ sensitivity decreases with age. By age 60, most people have lost 40 percent of their ability to smell and 50 percent of their taste buds.
A.
sensible
B.
senseless
C.
sensitive
D.
sensory
【单选题】What does tile writer mean by saying 'we pay for our sensitivity' in the first paragraph?
A.
We have to take care of our sense of pain.
B.
We suffer from our sense of feeling.
C.
We should try hard to resist pain.
D.
We are hurt when we feel pain.
【单选题】What does the writer mean by saying 'we pay for our sensitivity' in the first paragraph?
A.
We have to take care of our sense of pain.
B.
We suffer from our sense of feeling.
C.
We should try hard to resist pain.
D.
We are hurt when we feel pain.
【简答题】什么是调质处理?为什么调质钢的含碳量均为中碳?
【单选题】My church recently staged a Sensitivity Sunday to make our congregation aware of the problems faced by people with physical handicaps. We are asked to 'adopt a handicap' for several hours on Sunday mo...
A.
be confined to wheelchairs
B.
stuff cotton in his ears
C.
hobble around on crutches
D.
wear blindfolds
【单选题】Our ______ sensitivity decreases with age. By age 60, most people have lost 40 percent of their abilities to smell and 50 percent of their taste buds.
A.
sensible
B.
senseless
C.
sensitive
D.
sensory
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