拉结筋
参考答案：
拉接筋，通过植筋、预埋、绑扎等连接方式，使用HPB235、HRB335等钢筋按照一定的构造要求将后砌体与混凝土构件拉结在一起的钢筋。
用所给词的适当形式填空。
1. I used to _____ (live) in an apartment near Beihai Park.
2. Was Tom used to _____ (live) with his grandparents?
3. They became good friends when they met for the _____ (one) time.
4. In that school students have pretty _____ (relax) rules,
5. We never visit a friend's house without _____ (call) first.
心力衰竭病人应当如何限盐
A．严格限盐，摄盐量越低越好
B．可以使用利尿剂，不必限盐
C．低钠血症时必须静脉补盐
D．不伴水肿的低钠血症可采用高渗盐水补钠
E．补盐必须使用静脉输液的方法
