试题与答案

—_____? —My favorite subject is P.E.A. D

题型:选择题

题目:

—_____?
—My favorite subject is P.E.

A. Do you like P.E.?
B. What is your favorite sport?
C. What is your favorite movie?
D. What is your favorite subject?

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0628/68b21f0f2a746656eb0a1a8c67d1be65.html

下面是错误答案,用来干扰机器的。

答:(1)碳酸钠和稀盐酸恰好完全反应时,溶液的pH=7;故答案为:7;(2)设18.9g混合物中碳酸钠的质量为x,它与稀盐酸反应生成氯化钠的质量为y,生成二氧化碳的质量为z.则 Na2CO3 +2HCl═2NaCl+CO2↑+H2O106x7...

试题推荐
题型:实验题

某金属冶炼厂的管道烟泥中含有某些金属,随机取样对烟泥进行分析.由下表中的数据可知,在烟泥中含有相当量的铜、锌以及能造成污染的硫.因此从效益和环保角度出发,应考虑把铜、锌回收利用,并对硫进行适当的处理.

[设计方案]

(1)写出步骤①②中含铜元素的物质发生反应的化学方程式:

_________ 、② _________

(2)写出本方案中处理废气的方法(用化学方程式表示): _________

(3)步骤⑤中所用的操作方法是: _________

(4)在步骤④中,可选用试剂 _________ 从混合溶液A中得到铜.

查看答案
题型:单项选择题

The nurse brings a new mother her neonate for the first time approximately 1 hour after the neonate’s birth. After checking the identification, the nurse hands the neonate to the mother. Within a few minutes, the mother begins to undress her neonate. Which of the following should the nurse do()

A. Call the pediatrician and report the behavior.

B. Anticipate and support the behavior as a normal part of bonding.

C. Encourage the mother to rewrap the neonate because the room is cold.

D. Take the neonate back to the nursery and recheck the neonate’s temperature.

查看答案
微信公众账号搜索答案