下列项目中应计入营业外支出的是( )。A．存货跌价损失 B．短期投资跌价损失 C．

用锌片、铜片、盐酸和硝酸银溶液来验证锌、铜、银的金属活动性顺序，有以下四种实验方案（选项中Zn+HCl表示将锌片加入盐酸中，以此类推），其中最佳的方案是（　　）

A．Zn+HCl Cu+AgNO₃ Ag+Cu（NO₃）₂

B．Cu+HCl Cu+AgNO₃ Zn+AgNO₃

C．Zn+HCl Cu+HCl Cu+AgNO₃

D．Zn+HCl Cu+HCl Zn+AgNO₃

阅读理解。

     ADDIS ABABA, Ethiopia - One of the world's most famous fossils (化石) - the 3.2 million-year-old

Lucy skeleton (骨骼) unearthed in Ethiopia in 1974 - will go on an exhibition tour abroad for the first time

in the United States, officials said Tuesday.

     Even the Ethiopian public has only seen Lucy twice. The Lucy on exhibition at the Ethiopian National

Museum in the capital, Addis Ababa, is a replica while the real remains are usually locked in a secret

storeroom. A team from the Museum of National Science in Houston, Texas, spent four years discussing with the Ethiopians for the U.S. tour, which will start in Houston next September.

     "Ethiopia's rich culture of both the past and today, is one of the best kept secrets in the world," said

Joel Bartsch, director of the Houston museum.

     The six-year tour will also go to Washington, New York, Denver and Chicago. Officials said six

other U.S. cities may be on the tour. But they said plans had not been worked out.

     Travelling with Lucy will be 190 other fossils.

     Lucy, her name taken from a Beatles song that played in a camp the night of her discovery, is part of

the skeleton of what was once a 3-foot-tall ape-man (猿人).

1. The author writes this text mainly to ___ .

A. introduce a few U.S. museums

B. describe some research work

C. discuss the value of an ape-man

D. report a coming event

2. What does the words "a replica" in Paragraph 2 refer to?

A. A painting of the skeleton.

B. A photograph of Lucy

C. A copy of the skeleton.

D. A written record of Lucy.

3. How many cities has Lucy's U.S. tour plan already included?

A. Four.

B. Five.

C. Six.

D. Eleven.

4. What was the skeleton named after?

A. An ape-man.

B. A song.

C. A singer.

D. A camp.

判断中骨盆是否狭窄的重要指标是（）

A.髂棘间径

B.髂睛间径

C.坐骨切迹宽度

D.骶耻外径

E.坐骨结节横径

下列哪种损害不会引起共济失调（）

A.小脑性损害

B.深感觉障碍

C.前庭性损害

D.额叶损害

E.颞叶损害

公文语言最突出的特点是：

A．通俗
B．平实
C．庄重
D．准确