Given the high price,()it's not surprising they didn't buy it.
A: and
B: but
C: 不填
D: that
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I can do that job()myself.
A: by
B: on
C: with
D: 不填
与()轴承相配合的轴颈,表面粗糙度应为Ra0.16。
A. 圆柱滚子
B. 闽锥滚子
C. 推力球
D. 滚针
If I get the new job, I()buy a better car.
A: 不填
B: will
C: would
D: might
She has brought()two children by herself.
A: 不填
B: up
C: on
D: away