四点步的步行训练前,应重点训练()
A.背阔肌
B.腹部肌
C.髋关节伸展肌群
D.腕关节的伸展肌群
E.肘关节的伸展肌群
参考答案:A
预付地价款的利息额应以全部预付地价款按()计算。
A.整个开发建设周期
B.建筑期的一半
C.3/4建筑期
D.1/4建筑期
Which of the following statements about hypothesis testing is TRUE A Type Ⅱ error is the probability of:()
A. rejecting a true null hypothesis.
B. rejecting a true alternative hypothesis.
C. failing to reject a false null hypothesis.