单项选择题
public and private colleges and universities and community colleges offer（）.
A."continuing education"programs of associate degrees B.graduate studies professional training C.professional training D.All of the above
单项选择题 The House Speaker and the temporary President of the Senate are usually（）
单项选择题 Today,there are altogether（）departments of the U.S.government.
单项选择题 A president can serve（）term(s).
