【单选题】I like these English songs and they _____ many times on the radio. [ ]
【单选题】--Who taught ______ English?--Nobody. I taught all by ______
【单选题】在旅游故障出现的初期,导游员的正确做法是
【单选题】She is an excellent teacher who has taught in four schools, ______ she taught, her principals had a high opinion of her.
【单选题】English _____________ in more and more countries today.
B.
teach C was taught D is taught
【判断题】为了便于制造、检验和互换使用,国标GB1357-87规定了标准模数系列。
【单选题】在旅游故障出现的初期,导游员的正确的做法是
【简答题】密码按密钥方式划分,可分为( )式密码和( )式密码
【单选题】在旅游故障出现的初期,导游员的正确做法是