皮皮学，免费搜题
登录
搜题
【多选题】
h 与 f 两个声母的发音有何不同?A.
它们的发音部位不同，前者是舌根音，后者是唇齿音
B.
它们的发音方法不同，前者是塞擦音，后者是擦音。
C.
它们的发音方法相同，都是擦音，都是清音。
D.
它们的发音部位相同，都是舌根音。
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Which of the following is INCORRECT?
A.
I'm sorry to hear that you resorted to cheating.
B.
She devoted every Saturday afternoon to tap dancing.
C.
I propose to going to London next Tuesday afternoon.
D.
I object to being blamed for something that I haven't done.
【简答题】Dear Aunty, I work at a supermarket, and another girl and I share tasks we must finish before leaving. But she takes half an hour to do something I can do in ten minutes. She always has a story to tel...
【简答题】阅读理解。 Dear Aunty, I work at a supermarket, and another girl and I share tasks we must finish before leaving. But she takes half an hour to do something I can do in ten minutes. She always has a story ...
【简答题】在三种RNA中，( )含量最多，( )含有的稀有碱基最多，( )半寿期最短。
【简答题】在生物细胞中主要有三种RNA,其中含量最多的是 ,种类最多的是 ,含有稀有碱基最多的是 。
【简答题】In which situations a jump is considered as a failure?
相关题目：