按工序的组合程度分,模具可以分为()、()和级进模。
参考答案:单工序模、复合模
. I hear __________ boys in your school like playing football in their spare time, though others prefer basketball.
A.quite a lot
B.quite a few
C.quite a bit
D.quite a little
开发商在选择房地产经纪机构时,不仅要考察其代理的成功率,还要考察其代理每一个项目的平均销售周期。 ( )