怀疑自己患了职业病,应该到()进行职业病诊断。
A.高级医院
B.依法承担职业病诊断的医疗卫生机构
C.医院
参考答案:B
根据首字母和句子意思补全单词。
1. I should do my homework tonight i________ of watching TV.
2. He decided to go there, no one could s________ him.
3. Smoking is bad for our health, so we should make some posters a________ smoking.
4. He doesn't have much m________, he is very poor.
5. The giant tortoise lives longest of all animals, i________ humans.
(1)同温同压下,同体积的氨气(NH3)和氧气的质量比是______,相同质量的氨气和氧气的体积比是______;
(2)同温同压下同体积的H2和A气体的质量分别是0.2g和1.6g,则气体A的相对分子质量为______,含有A的分子个数为______.