【单选题】Unit 3 听力选择14
A.
High stress will make him change his job.
B.
There is a specific rule to beat stress.
C.
He has not found an effective way to beat stress.
D.
An element of stress is a good thing.
【单选题】Which of the following melodies is used as the main melody in Peking Opera?
【单选题】下列哪个文件用来记录应用程序对数据库的改变。( )
【单选题】用来记录应用程序对数据库的改变的文件是()。
【单选题】下面数据库文件用来记录应用程序对数据库进行改变的是( ) 。
【简答题】如图所示,塑料瓶中灌满水,用一张纸覆盖瓶口,压紧后倒置,瓶中的水和纸都不会下落,是因为 的作用.若此时在瓶如图所示,塑料瓶中灌满水,用一张纸覆盖瓶口,压紧后倒置,瓶中的水和纸都不会下落,是因为____ ____的作用.若此时在瓶底用一小孔,观察到的现象是____ ____.
【单选题】_______ I have two books? [ ]