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问题 单项选择题

在债券投资中，债券投资人可能遇到的不能按期或按合理价格变卖债券换回现金的风险被称为( )。

A．利率风险

B．流动性风险

C．信用风险

D．再投资风险

答案

参考答案：B

填空题

（10分）根据下 * * 种元素的电离能数据（单位：kJ/mol），回答下面各题。

元素代号I1I2I3I4
Q2080400061009400
R500460069009500
S7401500770010500
T5801800270011600
U420310044005900
（1）在周期表中，最可能处于同一族的是（   ）

A．Q和R    B．S和T    C．T和U    D．R和T    E．R和U

（2）电解它们的熔融氯化物，阴极放电反应最可能正确的是（   ）

A．Q2＋＋2e－→Q       B．R2＋＋2e－→R

C．S3＋＋3e－→S       D．T3＋＋3e－→T        E．U2＋＋2e－→U

（3）它们的氯化物的化学式，最可能正确的是（   ）

A．QCl2    B．RCl    C．SCl3    D．TCl    E．UCl4

（4）S元素最可能是（   ）                        

A．S区元素    B．稀有气体元素   C．p区元素 D．准金属    E．d区元素

（5）下列元素中，化学性质和物理性质最像Q元素的是（    ）

A．硼（1s22s22p1）  B．铍（1s22s2）  C．锂（1s22s1）D．氢（1s1） E．氦（1s2）
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阅读理解
信息匹配。请阅读下列应用文及相关信息，并按照要求匹配信息。首先请阅读以下植物的介绍：
A. Tiarella-A solid plant reaching 40-80cms that requires very rich, wet soil with a lot
of shade to grow healthily. Has attractive white to pink flowers throughout the year.
B. Lantana-A fast-growing plant that develops best in full sun with dry but rich
soil. Grows about 60-90cms tall. Bright, colourful globe-shaped flowers that appear
in winter.
C. Russian Sage-It has grey leaves and purple flowers which come out in mid-
summer. Grows 1-1.5 metres tall and prefers full sun and dry soil. Can cope well
in poor soil.
D. Soapwort-A plant that grows 10-25crns tall. Prefers a full sun site. It can handle poor
soil but wm not survive well when conditions are wet over the winter months. Flowers
in spring.
E. Wishbone Flower-Suitable for both indoors and outdoors. It grows up to 15cms tall and has flowers that range in colour from pink to purple. Prefers a dry, cool, shady site as summer heat will cause it to decline.
F. Japanese Painted Fern-Attractive non- flowering plant that grows well in either rich or
poor soil. Prefers shade and soil that will not dry out-as this will cause its leaves to die
quickly. Grows 2-4 metres tall so needs a large area to maintain its health.
请阅读以下购买者的信息，然后匹配购买者与所需要的植物。
( )1. Bill has a garden with many trees providing lots of shade for his family. The soil is wet but poor so Bill
has found it difficult to get plants to grow there.
( )2. Spyros has a small, sunny back garden. The soil is very dry and is also of very poor quality. He wants
a plant that will brighten his garden in spring.
( )3. Tran has just moved into a new flat which has a small balcony and wants to grow some flowers to add
colour. But the balcony gets little sunshine or direct rain and is quite cool.
( )4. Maria has a small back garden with little sunlight. It still gets plenty of rain and the soil is very rich. He
would like a plant that will be able to provide him with colour throughout the year.
 ( )5. Ray/has a back garden which is open, giving it lots of sunshine but unfortunately the soil is of poor
quality. He wants some plants that will provide colour during the dry summer time.
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