发展力量素质的练习有克服外部阻力和克服自身体重的练习两种。
参考答案：对
商检证书（不）是运输合同的一个组成部分。（商检证书是独立的证书文件）
Which of the following situations is more likely to predispose a client to postpartum hemorrhage()
A. Birth of a 7 lb (3,175g) infant.
B. Prolonged first stage of labor.
C. Pregnancy-induced hypertension (PIH).
D. Birth of twins.
