皮皮学，免费搜题
登录
搜题
【简答题】
第一个分时操作系统是()操作系统
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
【判断题】If two phonetically similar sounds occur in the same environments and they distinguish meaning, they are said to be in complementary distribution.
A.
正确
B.
错误
【判断题】If you need your recipient to do something, you’d better not outline it in your email.
A.
正确
B.
错误
【单选题】If two phonetically similar sounds are two distinctive phonemes, they are said to form a .
A.
minimal pair
B.
complementary distribution
C.
phonemic constrast
D.
minimal set
【简答题】置位指令 中, N 的取值范围为:( )
【单选题】If you_______ the receipt, you could have got a refund for those jeans.
A.
didn't throw away
B.
hadn't threw away
C.
hadn't been throwing away
D.
hadn't thrown away
【判断题】If two phonetically similar sounds occur in the same environments and they distinguish meaning, they are said to be in complementary distribution.
A.
正确
B.
错误
【判断题】If two phonetically similar sounds occur in the same environments and they distinguish meaning, they are said to be in complementary meaning.
A.
正确
B.
错误
相关题目：