劳神过度最易伤的脏气是()
A.损伤脾气
B.损伤肝血
C.损伤肾气
D.损伤心脾
E.损伤脾胃
参考答案:D
实验室常用盐酸的质量分数为36.5%,密度为1.20g/cm3.
(1)此浓盐酸的物质的量浓度是多少?(列式计算)
(2)配制100mL3.00mol/L的盐酸,需以上浓盐酸多少mL?(列式计算)
(3)用浓盐酸配制该稀盐酸需要以下哪些步骤(按配制顺序填写序号):______.
①计算 ②装瓶③用50mL量筒量取一定体积的浓盐酸④洗涤⑤移液⑥稀释⑦定容⑧摇匀.
It was not until she got home _______Jennifer had realized she had lost her keys.
A.where
B.that
C.when
D.before