下列物质中,含有氧分子的是 ()
A:O2
B:H2O
C:CO2
D:SO2
— May I speak to Lin Tao?
— Sorry, he is not in. He ______ Changsha.
一 How do you like the scarf?
一 Very much. It feels .
When I as well as my cousins __________ as a volunteer in Beijing, I saw the Water Cube twice.
下列常见植物中,无根,但有茎和叶的植物是( )
在如图所示的平面直角坐标系内,画在透明胶片上的▱ABCD,点A的坐标是(0,2).现将这张胶片平移,使点A落在点A′(5,﹣1)处,则此平移可以是()