【单选题】Did you buy ______? [ ]
【单选题】在薄板的小挠度弯曲问题中,其物理方程的个数为( )
【单选题】—______ you ______ anything in that store? —No, I ______, but Jim ______. [ ]
A.
Did; bought; didn't; bought
B.
Did; buy; didn't; bought
C.
Did; bought; didn't; buy
【单选题】脊髓灰质炎病毒感染人体后,绝大多数为隐性感染,发展成麻痹的百分率约为
【单选题】在薄板的小挠度弯曲问题中,其物理方程的个数为( )
【单选题】Did she do anything special there?
【单选题】--- Did you telephone Uncle Sam our plan for the Christmas holidays on his farm? --- Yes, he was happy about our arrival, and he eagerly asked when .
【单选题】小宏将自己制作的多媒体作品上传到博客供大家鉴赏,这属于制作多媒体作品基本过程中的()。