我国贵州省部分地区居民习惯在室内燃煤、用煤火烘烤食物等,由此较易造成()
A.地方性镉中毒
B.地方性氟中毒
C.地方性甲状腺肿
D.汞中毒
E.多环芳烃中毒
参考答案:B
根据首字母提示补全单词。
1. W___________ dog do you like?
2. I l___________ the black one.
3. The yellow dog is bigger t___________ the black one.
4. She's 2 years o___________ than me.
5. How l___________ is its tail?
6. The elephant is h___________ than the monkey.
液体是液压传动的工作介质,最常用的工作介质是()