搜题请搜索小程序“爱下问搜题”
问题 多项选择题

混凝土拌合料含有杂质会严重影响混凝土的质量，这包括（）

A.强度损失

B.抗渗与抗冻能力降低

C.混凝土被腐蚀

D.增大混凝土收缩量

E.水化热降低

答案

参考答案：A, B, C, D

单项选择题

This is not a diet. It’s a simple way to lose weight. And you don’t even have to give up the food you love or join a gym. You just follow some habits that thin people have. Keep them, and you’ll become thin.
(1) Wake-up
When you wake up in the morning, sit up slowly without using your hands. With legs straight out, bend forward until you feel sore in your back. It will burn about 10 calories.
(2) Start with soup
When you have a meal, order a clear soup, and have it before having the main food. In this way, you’ll feel fuller, so you’ll eat less when the main food comes.
(3) An apple ( or more) a day
Apples are full of fiber and water, so your stomach will want less. The study shows that people who eat at least three apples a day lose weight.
(4) Stand up and walk around
Every time you use the mobile phone, stand up and walk around. Heavy people sit on average two and a half hours more each day than thin people. This skill is very important as standing up and walking around will burn 50 or more calories.
Use these skills, and you will have a big weight loss.

Why does eating apples make one’s stomach want less food

A．Because apples are delicious.

B．Because apples are full of fiber and water.

C．Because apples are sour.

D．Because only apples are filled with calories.
查看答案
单项选择题

男，20岁，苍白、乏力一周。淋巴结及脾大，白细胞计数32.0×109/L，骨髓中原始细胞占83%，过氧化物酶染色阴性。

最可能的诊断是

A．急性早幼粒细胞白血病

B．急性粒细胞白血病

C．急性红白血病

D．急性单核细胞白血病

E．急性淋巴细胞白血病
查看答案