二冲程发动机曲轴转720°作一次工作循环。
参考答案：错
Would you mind _____ me some cents? I would like _____ a phone call. [ ]
A. lending, to make
B. borrowing, to make
C. to lend, to make
D. borrow, making
胚胎植入的部位是
A．子宫内膜基底层 B．子宫内膜功能层C．子宫肌层 D．子宫浆膜层E．输卵管壶腹部
