【简答题】扣球时,手掌应击在球的哪个部位? (A)顶部 (B)后下部 (C)后中下部 (D)后中上部
【判断题】(判断)直上式楼梯可沿双向前行,并设中间平台。这句话的描述是否正确?( )
【判断题】退火孪晶的形成机制一般认为是在晶粒生长过程中形成的
【单选题】听力原文:Why did the man recommend these television repairmen? (16)
A.
The shop was easy to find.
B.
The shop is located nearby.
C.
They do good work and the prices are reasonable.
D.
The repairmen are skilful although the prices may be high.
【简答题】Why is it easy to train dogs? Because they are ______.