遵循时间按摩原则,胃脘部不舒服的宾客,什么时间按摩的效果最好。
A、7:00—9:00
B、17:00—19:00
C、13:00—15:00
D、15:00—17:00
参考答案:A
Though Mark wasn't well educated, his common _____ guided him through a life.[ ]
A. sense
B. ground
C. place
D. practice
图1-23梁的支座反力为()。
A.1/4
B.1/2
C.3/4
D.1