护理百日咳患儿应尽量避免不良刺激的目的是（） A.预防呕吐 B.防止窒息 C.减少阵

分别用pH=2和pH=3的醋酸溶液中和等物质的量的苛性钾溶液，消耗两种醋酸溶液的体积分别为V₁和V₂，V₁和V₂的关系正确的是（　　）

A．V₂=10V₁

B．V₁＞10V₂

C．V₂＜10V₁

D．V₂＞10V₁

北京某公司进口10辆日本汽车，货物到达天津口岸后，应直接向天津检验检疫局办理报检手续。( )

One of China’s most popular folk arts is paper cutting（剪纸）. Archaeological(考古学的) finds trace the tradition back to the 6^th century; it is supposed that the beginnings of paper cutting were even a few centuries earlier. Paper cuttings are used for religious(宗教的) purposes, for decoration (装饰)and as patterns(图案).

Today, paper cuttings are mainly used as decoration. They ornament walls, windows, doors, columns mirrors, lamps and lanterns in homes. They are also used for decoration on presents, and are given as presents themselves. They are of special importance at festivals. At the Spring Festival for example, entrances are decorated with paper cuttings which are supposed to bring good luck.

Paper cuttings are not produced by machine, but by hand. There are two kinds of paper cuttings; scissor (剪刀) cuttings and knife cuttings. Scissor cuttings are fashioned with scissors. Several pieces of paper--- up to eight pieces---are fastened together. The motif(图形) is then cut with sharp, pointed scissors.

Knife cuttings are fashioned by putting several layers (层) of paper on a relatively soft foundation consisting of a mixture of tallow (动物脂) and ashes. Following a pattern, the artist cuts the motif into the paper with a sharp knife which he usually holds vertically(垂直地). The advantage of knife cuttings is that considerably more paper cuttings can be made in one operation than scissor cuttings.

In the countryside, paper cuttings are usually made only by women and girls. This used to be one of the skills that every girl was to master and that were often used to judge brides(新娘). Professional paper cutting artists are, on the other hand, almost always men who have guaranteed (保证) incomes and work together in workshops.

小题1:Paper cuttings can be used for ______________.

A．decoration

B．decoration on presents

C． presents

D．all of the above小题2:The underlined word ornament means ______________.

A．to be added to and make something beautiful

B．to be used as

C．to be cut in

D．to be made on小题3:Which is the best title of this passage?

A．The ways of paper cutting

B．The reasons for paper cutting

C．The purposes of paper cutting

D．Paper cutting

建设工程中，以一定的方式中断风险源，使其不发生或不再发展，从而避免可能产生的潜在损失，这是一种( )的风险对策。

A．风险回避
B．保险转移
C．损失控制
D．风险自留

手太阴肺经的起止穴分别是：

A．少商、中府

B．天府、商阳

C．天府、少商

D．中府、商阳

E．中府、少商