【单选题】Why did the man break up with his girlfriend?
A.
Because her dad did not like him.
B.
Because she needed to finish her college.
C.
Because he had a busy career.
D.
Because her dad threatened not to support her college education.
【判断题】我国的民族分布特点是各民族大杂居,小聚居,交错居住。()
【简答题】我国的民族分布特点是______,我国的人口政策是______.
【单选题】单作用叶片泵转子每转一周,完成吸、排油各()次。
【多选题】我国的民族分布特点是
B.
汉族主要居住在内地和东南沿海各省市并遍布全国
C.
少数民族主要居住在边疆各省、自治区,和汉族或其它少数民族交错居住
【判断题】单作用叶片泵转子每转一周,完成吸、排油各 1 次 。