一个平行四边形与一个三角形等底等高，它们的面积和是24平方米，三角形的面积是__

阅读理解。

     The oldest stone buildings in the world are the pyramids. They have stood for nearly 5000 years, and it

seems likely that they will continue to stand for thousands of years yet. The most famous of these are the

"Step" pyramid and the "Bent" pyramid.

     Some of the pyramids still look much as they must have done when they were built thousands of years

ago. Most of the damage (破坏) has been at the hands of men who were looking for treasure or, more often,

for stones to use in modern buildings. The dry climate of Egypt has helped to preserve the pyramids, and their

very shape has made them less likely to fall into ruin (废墟). These are good reasons why they can still be

seen today, but perhaps the most important is that they were planned to last forever.

     It is most likely that plans were made for the building of the pyramids because the plans of other large

works have fortunately been preserved. But, there are no writings or pictures to show us how the Egyptians

planned or built the pyramid themselves. As a result, we are only able to guess at the methods used.

However, one thing is certain: there must have been months of careful planning before they could begin to

build. The first thing they had to do was to choose a suitable place. You may think this would have been easy

with miles and miles of empty desert around, but a pyramid could not be built just anywhere. Certain rules

had to be followed, and certain problems had to be overcome.

     The pyramid had to be on the west side of the Nile, the side on which the sun sets. This was for religious

reasons. The pyramid also had to stand well above tho level of the river to protect it against the regular floods.

The pyramid could not be too far from the Nile, however, as the stones to build it needed to be carried in boats

down the river to the nearest point. Water transport was, of course, much easier than land transport. The

builders also had to find a rock base which was not likely to crack under the great weight of the pyramid.

Finally, the pyramid had to be near the capital, or better still, near the king's palace so that he could visit it

easily and personally check the progress being made on the final resting place for his body.

1. Most of the damage to the pyramids has been caused by _______.

A. stones

B. rivers

C. weather

D. men

2. What's the meaning of the underlined word preserve?

A. Damage.

B. Protect.

C. Build.

D. Cover.

3. What was the first thing people had to do before they could begin to build?

A. To follow the rules.

B. To draw the pictures.

C. To choose the right place.

D. To find the workers.

4. To protect a pyramid from floods they could have built it a long way from the Nile, but _______.

A. it had to be built on the west side of the river Nile where the sun sets

B. it was difficult to find a large enough rock base so far from the fiver

C. this would have been impossible because of religious reasons

D. this would have made it very difficult to transport the materials

关于爱情，下列说法中错误的是（）。

A.幼儿也有爱情体验

B.爱情有生理基础，包括性爱因素

C.爱情的基本倾向是奉献

D.爱情是一种高级情感，不是低级情绪

男，30岁，诊为疟疾，发热时体温可高达39℃以上，若干小时降至正常，经过一段时间又突然升高，高热与无热交替出现，该患者热型为

A．波动热
B．弛张热
C．稽留热
D．间歇热
E．回归热

上海市某外商独资企业向该企业在境外的分公司订购进口设备200套(属自动进口许可证管理、法定检验商品)，该企业向海关出具的发票价格为CIF50000美元/台。货物进口后该企业在境内将设备售出，并将其所得价款的10%(8000美元治)返还给境外的分公司。在该货物进口的同期，海关掌握的相同货物的进口成交价格为CIF60000美/C/台。已知汇率为1美元=8.28人民币，该设备适用税率为复合税，其中CIF50000美元治以下(含 50000美元/台)的关税税率为单一从价税30%；CIF50000美元/台以上的关税税率为124200元人民币/台再加5%的从价关税。
根据上述案例，回答下列问题。

该外商独资企业对完税价格审定的结果有异议，下列该企业可以采取的措施中正确的是( )。

A．暂时不缴纳税款，向海关申请行政复议

B．暂时不缴纳税款，直接向人民法院提起诉讼

C．缴纳税款，在向海关申请行政复议的同时，又向人民法院提起诉讼

D．缴纳税款，先向海关申请行政复议；对复议决定仍不服的，再向人民法院提起诉讼

“从1991 年，克里姆林宫的红旗悄然落下”指的是[ ]

A.  俄国二月革命  

B.  实行新经济政策  

C.  俄国十月革命    

D.  苏联解体