三度房室传导阻滞，心室率为35次／分的患者，根本的治疗方法是（） A.安装心脏起搏器

什么是集函数？

如图中横线为纬线，竖线为经线。G、I分别为BH、HD的中点。读图，回答1~3题

1、若BAD是晨昏线，且D点正值日出，一架飞机自H点出发，沿赤道向东匀速飞行，12小时后又回到H点，则飞机上的人能观测到[ ]

A、两次日出，一次日落

B、一次日出，两次日落

C、一次日出，一次日落

D、两次日出，两次日落

2、若CAE是晨昏线，A点不是极点，且此时G点正值日出，则[ ]

A、太阳直射点位于C点所在的经线上

B、C、E两点经度差是

C、A点所在的纬线以北地区出现极夜现象

D、飞机自C点飞往D点的最短路线是先东南再东北

3、若DE是晨线的一段，则下列说法正确的是[ ]

A、赤道低气压带位于北半球

B、长江口盐度一年中最低

C、北京的正午太阳高度约为

D、南京正午太阳高度比北京小

在空白处填入适当的句子补全对话。

A: What can I do for you?

B: Yes, please. __1__ But what kind of flower shall I buy, roses or carnations (康乃馨)? She likes red

     roses best while today is Mother's Day.

A: I think carnations are special and better today. They show happiness, sweetness and love. They are for

     mothers.

B: All right. Can I have a look at those carnations?

A: Sure.__2__ 

B: Red.

A: What about these?

B: Great.__3__ 

A: 30 yuan.

B: OK.__4__ Here is the money.

A: Thank you. Here's the change and a card from our shop to your mom. Best wishes to her!

B: __5__ 

People are indulging in an illusion whenever they find themselves explaining at a cocktail(鸡尾酒)party，say, that the are “in computers，”or“ in telecommunications，”or “in electronic funds transfer”. The implication is that they are part of the high-tech world. Just between us，they usually aren’t. The researchers who made fundamental breakthroughs in those areas are in a high-tech business. The rest of us are （71）of their work. We use computers and other new technology components to develop our products or to organize our affairs. Because we go about this work in teams and projects and other tightly knit working group（紧密联系在一起的工作小组），we are mostly in the human communication business. Our successes stem from good human interactions by all participants in the effort，and our failures stem from poor human interactions.

The main reason we tend to focus on the（72）rather than the human side of work is not because it’s more (73)，but because it’s easier to do. Getting the new disk drive installed is positively trivial compared to figurine out why Horace is in a blue funk(恐惧）or why Susan is dissatisfied with the company aver only a few months. Human interactions are complicated and never very crisp（干脆的，干净利落的）and clean in　their effects, but they matter more than any other aspect of the work. If you find yourself concentrating on the（74）rather than the（75）．you’re like the vaudeville character （杂耍人物）who loses his Keys on a dark street and looks for them on the adjacent street because，as he explains，“The light is better there!”

（71）处填（）。

A．creators　　

B．innovators　

C．appliers

D．inventors