张乐平的《三毛流浪记》是()
A.油画作品
B.版画作品
C.漫画作品
D.国画作品
参考答案:C
—I have learned English so long. But I can't follow the Australian.
—Because English is spoken ______ in different countries. [ ]
A. different
B. differently
C. widely
D. slowly
下列抽样方式中,抽样误差最大的(其它条件相同)()
A.纯随机抽样
B.等距抽样
C.分层抽样
D.整群抽样