使用性质为“以行驶里程和时间计费,将乘客运载至其指定地点”的机动车是()。
A.出租客运
B.旅游客运
C.公路客运
D.租赁
参考答案:A
Throughout the week, the boy _____most of the work in the manager’s office.
A.took on
B.took off
C.took in
D.took over
水轮机的基本工作原理是什么?