切削时,切屑流向工件的待加工表面,此时刀尖强度______。
A.较好
B.较差
C.一般
参考答案:B
It doesn’t often snow in my hometown in winter, but it ___be rather cold sometimes.
A.shall
B.should
C.can
D.would
She an old friend of hers yesterday while she was shopping att the department store.
A.turned down
B.dealt with
C.took after
D.came across