1.选择题- (共3题)
1.我国汉代数学家赵爽为了证明勾股定理,创制了一副“弦图”,后人称其为“赵爽弦图”(如图1).图2由弦图变化得到,它是由八个全等的直角三角形拼接而成.记图中正方形ABCD,正方形EFGH,正方形MNKT的面积分别为S1,S2,S3,若S1+S2+S3=10,则S2的值是{#blank#}1{#/blank#}.
2.汛期来临前,滨海区决定实施“海堤加固”工程.某工程队承包了该项目,计划每天加固60米.在施工前,得到气象部门的预报,近期有“台风”袭击滨海区,于是工程队改变计划,每天加固的海堤长度是原计划的1.5倍,这样赶在“台风”来临前完成加固任务.设滨海区要加固的海堤长为a米,则完成整个任务的实际时间比原计划时间少用了{#blank#}1{#/blank#}天(用含a的代数式表示).
2.单项选择- (共8题)
4.
In human, there is a possibility of ____ such as fever and headaches if there is exposure to the virus.
A.symptoms | B.circumstances | C.consequences | D.exhibitions |
5.
People who are infected with HIV are often looked down upon because social _____ against the disease runs so deep.
A.preference | B.conflict | C.prejudice | D.status |
6.
To _____ his position in the country, he appointed his close friend Henry as head of the troops.
A.strengthen | B.sponsor | C.clarify | D.switch |
7.
Doyle makes good use of many literary devices in his detective novel to ____ an impression of tension and mystery.
A.advocate | B.convey | C.describe | D.attract |
8.
Shortly after publication, the book became ____ because of the writer’s repeated use of the negative word "nigger" to refer to the black Americans.
A.universal | B.conventional | C.controversial | D.skeptical |
9.
Things like electronics, glass or other ____ objects are often packed with an appropriate protective material to prevent damage.
A.flexible | B.concrete | C.abnormal | D.fragile |
10.
Nearly 200 people entered the area ______ to mine diamonds in 2000, and eventually had to be driven off by the police.
A.irregularly | B.illegally | C.imperfectly | D.unusually |
试卷分析
-
【1】题量占比
选择题:(3道)
单项选择:(8道)
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【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:0
5星难题:0
6星难题:4
7星难题:0
8星难题:4
9星难题:0