1.单选题- (共5题)
A.2.0 m/s2 |
B.1.5 m/s2 |
C.1.0 m/s2 |
D.0.5 m/s2 |
A.![]() |
B.![]() |
C.![]() |
D.![]() |
A. 20 m
B. 24 m
C. 25 m
D. 75 m

A.![]() |
B.![]() |
C.![]() |
D.![]() |
2.选择题- (共1题)
Gabi Rizea only discovered his talent for woodcarving three years ago, and has since put{#blank#}1{#/blank#} to good use, saving dozens of old tree stumps (树桩) from {#blank#}2{#/blank#} (remove) by turning them into impressive works of art.
Rizea became a woodcarver{#blank#}3{#/blank#} (complete) by accident. Three years ago, after buying himself a new chainsaw (链锯), he{#blank#}4{#/blank#} (start) “playing” with it on a block of wood. He tried carving a human face into the wood, and to his surprise, it turned out pretty good. Today, he is so good at woodcarving that his home city allows him to work his magic on old tree stumps and so far about 40 works of art{#blank#}5{#/blank#}(create) in the local parks.
“In 99% of the cases, the wood just doesn't match my ideas,” he said in an interview. “I first have to remove all the rotten parts, and sometimes{#blank#}6{#/blank#} is left isn't enough for my designs.”
Following his recent rise to fame, Rizea has been asked by many{#blank#}7{#/blank#} (city), including the capital of Romania to transform their old tree trunks {#blank#}8{#/blank#} works of art. He promised to honor their requests, but he will never repeat any of the artworks{#blank#}9{#/blank#} (find) in his home city.
In spite of his obvious talent, the Romanian {#blank#}10{#/blank#} (art) recently got into art school in order to fully master woodcarving.
3.多选题- (共3题)
A.刹车后的加速度大小为2 m/s2 |
B.第0.5 s末的速度为9 m/s |
C.汽车的初速度为12 m/s |
D.从刹车到停止汽车前进22.5 m |
A.这2 s内的平均速度是2.25 m/s |
B.第3 s末的瞬时速度是2.5 m/s |
C.质点的加速度是0.125 m/s2 |
D.质点的加速度是0.5 m/s2 |
A.v1:v2:v3=3:2:1 |
B.v1:v2:v3=![]() ![]() ![]() |
C.x1:x2:x3=3:2:1 |
D.x1:x2:x3=5:3:1 |
4.解答题- (共3题)
(1)若司机发现前车因故突然停车,则从司机发现危险到客车停止运动,该客车通过的最短路程?并说明按经验,车距保持90m是否可行?
(2)若客车超载,刹车最大加速度减为a2=4m/s2;司机为赶时间而超速,速度达到v1=144km/h;且晚上疲劳驾驶,反应时间增为t′=1.5s,则从司机发现危险到客车停止运动,客车通过的最短路程?并说明在此情况下经验是否可靠?
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【1】题量占比
单选题:(5道)
选择题:(1道)
多选题:(3道)
解答题:(3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:2
5星难题:0
6星难题:6
7星难题:0
8星难题:3
9星难题:0