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问题 单项选择题

中级分析工应掌握的基础知识是（）。

A.缓冲溶液的计算和配制

B.常用的基准物质干燥条件

C.能斯特方程的应用

D.影响沉淀溶解度的因素分析

答案

参考答案：A

阅读理解
阅读理解。
     Traditional Chinese festivals are now getting their own logos (标识). Here're logos for China's seven
important traditional festivals.
     Chunjie, Spring Festival, China's lunar new year, is the most important of the
traditional Chinese holidays. People usually get together, watch fireworks and the
lion dance, eat dumplings and put on new clothes. They pay New Year calls to
their relatives and friends. Children usually get red packets.
     Yuanxiao, Lantern Festival
is on the 15th day of the first
month in the Chinese calendar.
People watch lanterns and eat
sweet dumplings. 		     Qixi, the Night of Sevens is
on the seventh day of the seventh
month in the Chinese calendar.
It's Chinese version (版本) of
Valentine's Day (情人节).
     Qingming, Tomb-Sweeping
Festival is around April 5. People
from home and abroad go to the
graves (墓) of the dead in
memory of (纪念) them.		     Zhongqiu, Mid-Autumn
Festival, is on the 15th day of
the eighth month in the Chinese
calendar. Families enjoy moon
cakes and tell the story of
Chang'e.
    Duanwu, Dragon Boat Festival
is on the fifth day of the fifth
month in the Chinese calendar.
People eat rice dumplings and
remember the poet Qu Yuan. 		     Chongyang, Double Ninth
Festival is on the ninth day of
the ninth month in the Chinese
calendar. It's the date to pay
respect (尊敬) to the old.
1. Mid-Autumn Festival is ________ in the Chinese calendar.
A. on 15th of August
B. on 7th of July
C. on 15th of January
D. on 5th of May
2. What do Chinese people eat at Dragon Boat Festival?
A. Dumplings.
B. Moon cakes.
C. Rice dumplings.
D. Sweet dumplings.
3. Chinese version of Valentine's Day is ________.
A. Lantern Festival
B. the Night of Sevens
C. Spring Festival
D. Tomb-Sweeping Festival
4. At Tomb-Sweeping Festival, people go to the graves in memory of ________.
A. Qu Yuan
B. the elderly
C. Chang'e
D. the dead
5. At Double Ninth Festival, what do people usually do?
A. They watch lanterns.
B. They pay respect to old people.
C. They visit their relatives.
D. They get together to tell stories
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单项选择题

关键路径是事件结点网络中（）。

A.从源点到汇点的最长路径

B.从源点到汇点的最短路径

C.最长的回路

D.最短的回路
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