标准大气压力下，常温的R134a制冷剂呈甚么状态（） A.液态 B.气态 C.固态

根据对话内容， 从对话后的选项中选出能填入空白处的最佳答案。选项中有两项为多余选项：

A: Mary， we are going to have a party on New Year’s Eve. I’m sure we’ll have a good time. ____小题1:____

B: I‘d like to. ____小题2:____

A: In our classroom. We are going to decorate（装饰） it and turn it into a splendid ballroom.

B: ____小题3:____ I shall be very glad to spend my first New Year in China with you.

A: But we are going to ask everyone at the party to give a performance. ____小题4:___

B: I will. My voice is not very pleasant to the ear，though.

A: I heard you sing once. ____小题5:____ I‘m sure you’ll be the star of our New Year party.

B: Oh，thank you.

A．Your voice was sweet and beautiful.

B．Where are you going to have it?

C．Would you like to join us?

D．Oh，it is great.E. Let‘s go to the ball together.

F. Do sing us some English songs，please.

G. Go ahead.

下列属于期货业从业人员应当遵守的执业行为规范的是（）。

A．诚实守信，恪尽职守，促进机构规范运作，维护期货行业声誉

B．以专业的技能，谨慎、勤勉尽责地为客户提供服务

C．不得以本人或者他人名义从事期货交易

D．不得从事不正当竞争行为和不正当交易行为

素体痰盛而又感受外邪者的脉象特点是( )

A．浮滑脉
B．浮缓脉
C．浮紧脉
D．弦滑脉
E．浮数脉

中华人民共和国海关进口货物报关单

预录入编号： 海关编号：

请根据以上资料，选择以下栏目的正确选项：

“经营单位”栏：（）。

A．天津保税区报关实业有限公司

B．天津科健伟科技发展有限公司

C．天津海关

D．天津科健伟科技发展有限公司1214067543

冷地型草坪草最适宜的播种建植时间是（）。

A.夏季

B.春末夏初

C.秋季

D.夏末秋初