我们党面临的重大考验是（）
A.执政
B.改革开放
C.和平演变
D.外交关系
参考答案：A, B, C
Nothing but two ancient Chinese coins ＿＿＿＿ after they took out the jar.
A．did they find in it
B．they found in it
C．in it did they find
D．in it found they
下列反映人口变动强度的指标有()。
A.出生人口数
B.人口死亡率
C.人口出生率
D.迁人人口数
E.人口净迁入率
