人们在写信时常常在信的结尾上写“此致”、“敬礼”，“此致”在这里表示的意思是（）。A

阅读下面的短文，判断正(A)误(B)。

     Want to say "hello" from Disneyland? Send a post card!

     Beautiful scenes of paradise (乐园), wild animals, silly pictures-you can find them all in one place. Where?

On a post card! Have people always sent post cards? No. Before post cards, people liked sealed letters.

     The idea for the first decorated (装饰) post card came to John P. Charlton in 1861. He thought a simple

card with decorations would be a great way to send a note. Then in the late 1800s, post cards with pictures

appeared. By law, people had to write their note on the front-on the picture! The back was only for the address.

Several years later, England allowed a divided-back post card. Then people could write their note on the back

left side and put the address on the right. During the early 1900s, the golden age of post cards, picture post

cards became a craze of the world. In 1908, Americans alone mailed over 677 million post cards. Today, post

cards are the third most popular collection in the world after stamps and coins.

( )1. We can see some silly pictures on the post cards.

( )2. Post cards were produced before sealed letters.

( )3. In 1861, the first decorated post card appeared.

( )4. Post cards were most popular during the early 1900s.

( )5. Stamps, coins and post cards are the most popular collections in the world.

下列选项中，( )不属于证券交易与证券发行两者之间的关系。

A．相互促进

B．相互制约

C．证券发行为证券交易提供了对象，决定了证券交易的规模，是证券交易的前提

D．证券发行使证券的流动性特征显示出来，从而有利于证券交易的顺利进行

疟疾产生黑尿热常与患者缺乏下列哪种酶有关

A．丙酮酸激酶

B．葡萄糖-6-磷酸脱氢酶

C．磷酸果糖激酶

D．枸橼酸合成酶

E．葡萄糖醛酸转移酶

动物饲养场聘用经注册的执业兽医师不得从事的执业活动是（）

A、对本场动物疾病的预防

B、对本场动物疾病的诊断

C、对本场动物疾病的治疗

D、对本场动物疾病开具处方

E、对本场外动物疾病进行诊断

中 * * 党在国民党统治区公开出版的第一张机关报是（）