齿形联轴器的齿厚磨损超过原齿厚的()%时,应更换。
A.(5~10);
B.(10~12);
C.(15~30);
D.(30~35)。
参考答案:C
下列选项中,符合所给图形变化规律的是()
A.A
B.B
C.C
D.D
The employee works so hard,in my opinion,and________to be given a chance to be promoted in
the company.[ ]
A. qualifies
B. deserves
C. permits
D. expects