下列各组图形中,一定属于形状相同的两个图形是[ ]
A.大小不同的两个圆
B.两张邮票
C.两张长方形纸片
D.两张照片
答案:A
The instant Nate woke up the next morning, he saw a note on the bedside table _____ by his wife_______ “Breakfast is ready. Have a nice day.
A.left; said
B.leaving; saying
C.left; saying
D.leaving; say
单作用叶片泵有一段封油区将()隔开。