甲、乙签订一项购销合同，约定以托收承付的方式结算，甲收到货物，在其承付期满，银行营业

下列关于Na、Na⁺二种粒子的判断中，正确的是

①核电荷数相同 ②核外电子数相等 ③电子层结构完全相同 ④质量几乎相等 ⑤质子数相等 ⑥ Na⁺比Na稳定 [ ]

A．①④⑤

B．①③⑤⑥

C．①④⑤⑥

D．②③④

关于右肺中叶不张的X线表现，下列错误的是（）

A.后前位胸片上右下野中内带呈底向右心缘之三角形阴影

B.右心缘模糊

C.斜裂向上向前移位

D.水平裂下移

E.前弓位置显示该叶不明显

补全对话。用适当的句子填空，使对话完整。

A: Morning!  1_

B: We'd like to make a trip for 2010 EXPO in Shanghai.

A: We have many different kinds of visiting groups.  2  

B: I'm not sure what kinds of groups you can have.

A: We have family groups, old people groups, student groups. The family groups and the old people

groups can start at any week. The student groups will only start during their summer holiday.

B: We'd like to choose a family group.

A: It's really worth visiting. Which hotel do you want to live in?

B:   3  Which hotel do you think is comfortable?

A: The Holiday Hotel is very good. What's more important, there are different kinds of houses for you to

choose.

B: We don't want to live in an expensive hotel. That's what we'll do.

A:   4_

B: OK.  I'll ask my wife to fill in the form.  By the way, is it all right if we pay by credit card?

A: Yes, it's quite all right.   5_

B: Thank you.

应贮存于棕色容器内的药是

A．硫糖铝片

B．硫酸镁

C．西咪替丁片

D．维生素C

E．兰索拉唑胶囊

基金单位价格与基金资产净值必然趋于一致。( )