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【单选题】
They’ve sold their house______leaving the country.A.
preparation to
B.
preparation for
C.
in preparation for
D.
on preparation for
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【单选题】— What colour are the stars inside Australia's flag? — They're _____________. [ ]
A.
white
B.
beautiful
C.
right
【单选题】The main idea of the last paragraph is that people have ______.
A.
warmly welcomed the abundance of wealth shown by publishers
B.
warmly welcomed the enormous amount of creativity
C.
showed great enthusiasm in publishers of great wealth
D.
reacted strongly to the unlimited creativity of publishers
【单选题】—What colour are the trees in autumn (秋天)? —They're ______. [ ]
A.
yellow
B.
green
C.
white
【单选题】The word trivial in Paragraph 4 is closest in meaning to ______.
A.
slight
B.
important
C.
abundant
D.
significant
【单选题】The main idea of the last paragraph is that people have ______.
A.
warmly welcomed the abundance of wealth shown by publishers
B.
warmly welcomed the enormous amount of creativity shown by publishers
C.
showed great enthusiasm in publishers of treating wealth
D.
reacted strongly to the unlimited creativity of publishers
【简答题】按指定格式输入输出数据,使得a=3,b=4,c='w',d='e'。 #include “stdio.h” void main() { int a,b; char c,d; scanf("%d%d\n",&a,&b); ___________________ printf("a=%d,b=%d\n",a,b); printf("c=%c,d=%c\n",c,d); }
【简答题】简述重铬酸钾法测定COD的实验原理。实验中，使用的催化剂为何种物质?水样中的Cl - 如何消除?如测定水样的COD在85mg/L左右，则所使用的重铬酸钾标准溶液的浓度为多少?
【单选题】关于柔度，下列说法中错误的是（）
A.
柔度即长细比，量纲为一。
B.
大柔度杆应用欧拉公式计算失稳临界力。
C.
柔度等于计算长度和惯性半径的比值。
D.
小柔度杆应用经验公式计算失稳临界力。
【多选题】在建设工程施工合同履行过程中，应由发包人承担费用的是( )。
A.
邻近建筑物、构筑物的保护工作
B.
发包人委托承包人完成工程配套的设计
C.
承包人向发包人提供的施工现场办公和生活房屋及设施
D.
承包人按规定办理施工现场交通、环境保护有关手续
E.
对已竣工而未交付工程的损伤修复
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