治疗口疮风热乘脾证的首选方剂是（） A.导赤散 B.泻黄散 C.清胃散 D.凉膈散

长征途中，叶挺奉命率部攻占汀泗桥。

风湿性心脏病

A．心功能不全控制后，心脏杂音减弱
B．心功能不全控制后，心脏杂音增强
C．使用硝酸甘油后心脏杂音增强
D．奇脉
E．交替脉

The Chinese invented paper in 105 A. D. They mixed the bark of a tree and rags (破布) with water, put a screen into the mixture, and lifted out a thin piece of wet paper. They dried the paper in the sun.

The Chinese kept their secret of how to make paper until a war with Muslims in the ninth century. The art of papermaking soon spread throughout the Muslim world.

The Mayan Indians in Central America and Pacific Islanders also discovered how to make paper, but their knowledge never spread to the rest of the world.

For centuries, all paper was made by hand. Rags were the main material. Then a French scientist discovered that people could make paper from wood, too. Finally, in the eighteenth century. a Frenchman invented a machine to make paper from wood.

小题1:Who discovered how to make paper?

A．The Chinese.

B．The Pacific Islanders.

C．The Mayan Indians.

D．All of the above.小题2: When did the Chinese invent paper according to the passage?

A．About 1 ,800 years ago.

B．About 1, 900 years ago.

C．About 2, 000 years ago.

D．About 2, 100 years ago.小题3: How was papermaking introduced into the rest of the world from China?

A．Through wars.

B．Through the Muslims.

C．Through the Mayan Indians.

D．Through the Pacific Islanders.小题4:Which of the following is the best title for this passage?

A．The Invention of Paper.

B．The History of Papermaking.

C．Different Ways of Making Paper.

D．The Invention of a Papermaking Machine.

马克思主义有阶级性，因而没有科学性和真理性。( )

经海关批准，实行集中申报的进出口货物，应当适用______实施的税率。

A．集中申报之日

B．每次货物进出口时海关接受该货物申报之日

C．填发缴款书之日

D．货物放行之日