下面哪种作用是短反馈调节（） A.TSH→T3、T4 B.TSH→TRH C.TRH

对伴有心房扑动、心房颤动的心功能不全疗效较好的药物是（）.

A．米力农

B．多巴酚丁胺

C．依那普利

D．地高辛

E．氢氯噻嗪

纳米技术是现代科学技术的前沿，利用纳米制造的直升飞机只有蜜蜂大小，应用在军事侦察机等领域尤为突出．一架蜜蜂型侦察机长12mm，相当于         nm．一块冰的密度为0.9×10³㎏/m³，熔化一半后，剩余冰块的密度为         g/cm³．

阅读理解。

     The tea gardens in Sri Lanka are actually large estates (种植园). The best tea usually comes from plants

grown on high grounds, the cool hilltops with rows and rows of tea plants. The plants are about one metre

apart. The plant is often pruned so that it remains only 60 to 90 centimetres high. Pruning is important

because it encourages the growth of tender shoots, or young leaves. It is from these shoots that the best tea

is got.

     Practically all the tea pickers are women. The estates prefer to employ women pickers because they are

more careful. Their thin fingers can easily remove the twin leaves and new shoots from the plant, which are

the parts used for processing (加工) tea. The pickers carry large baskets into which they throw their pickings.

A skilled worker can harvest between 9 to 14 kilogrammes of tea leaves a day. Usually new shoots can be

picked from the plants about every ten or fifteen days.

      Processing tea shoots into the familiar dry tea leaves requires great care and skill. There are various

methods of processing depending on the type of tea required.For black tea,the young green leaves are first

spread out shelves to dry. This process removes much of its water and the leaves become soft. After this, the

leaves are passed through heavy rollers.This operation will press the leaves for juices which give the tea both

its colour and taste.Then the leaves are spread out on floors and left to ferment (发酵) under wet conditions.

Fermentation develops the rich taste of black tea.The fermented leaves are then dried with a hot-air blower

until they become rolled-up black leaves.The final step is to sort and grade them before the black tea is ready

for sale to countries all over the world.

1. In the first paragraph,the word "pruning" means _____.

A. regular cutting of the plants

B. frequent watering

C. regular use of chemicals

D. growing the plants high in the mountain

2. One of the reasons why women are employed to do the picking is that _____.

A. they work harder than men do in the picking

B. they can throw their pickings more easily into the baskets

C. their fingers fit them better for the job.

D. they can more easily find the twin leaves.

3. How many processing steps are mentioned in the last paragraph?

A. Three.

B. Four.

C. Five.

D. Six.

3. What is the writer's purpose in writing the passage?

A. To introduce various methods of tea processing.

B. To persuade readers to buy tea from Sri Lanka.

C. To tell a story that had happened in the tea gardens.

D. To inform readers of tea growing, picking and processing.

FMS表示（）。

关于宣告死亡，下列哪些选项是正确的

A．宣告死亡的申请人有顺序先后的限制

B．有民事行为能力人在被宣告死亡期间实施的民事行为有效

C．被宣告死亡的人与其配偶的婚姻关系因死亡宣告的撤销而自行恢复

D．被撤销死亡宣告的人有权请求依《继承法》取得其财产者返还原物或给予适当补偿