1.单选题- (共2题)

A.不偏转,仍打在O点 |
B.向左偏转 |
C.向上偏转 |
D.向下偏转 |

A. 从t1到t2时间内,小车做匀速直线运动
B. 从t1到t2时间内,小车做匀加速直线运动
C. 从t2到t3时间内,小车做匀速直线运动
D. 从t2到t3时间内,小车做匀加速直线运动
2.选择题- (共4题)
My first visit to Angkor Wat was in 1980. The country had been at war for many years and the temple was deserted and falling to pieces. Plants were growing out of the roofs, and trees were growing in the courtyards.
Today, the temple is the scene of a busy repair programme. A team of 15 Indian experts are organizing a workforce of 400 Cambodians, most of them women, who are cleaning, repairing and rebuilding parts of this temple.
As I walked through the courtyards, I noticed the Cambodian women devote hours to cleaning carefully a tiny area of stone. Boards are laid down to protect the precious painted stones while the repair work is going on. There are very few machines and little heavy equipment. Workers carry building materials in buckets at the end of long poles. Piles of stones lie in a corner of the courtyard, waiting to be replaced.
The work of cleaning the stones is watched over by three Indian chemists. It is a very slow task. First they clean the stones with brushes using buckets of a weak chemical. Then gaps between the stones are filled in. Finally another material is painted onto the stones which will protect them from water forever.
Work starts every day at 7 a. m. and goes on until late afternoon six days a week, with a break at midday.
Evening is the best time to visit the temple, after the tour groups have left. As the sun sinks lower, shadows spread across the courtyard. After sunset, the sky turns pink. The grey stone towers take on a golden colour before turning pink. Nowhere else in the world can there be such a quiet, beautiful place.
找出下列汉字的正确的读音。
换{#blank#}1{#/blank#}(huàn hàn) 精{#blank#}2{#/blank#}(jīn jīng) 妙{#blank#}3{#/blank#}(mào miào)
掉{#blank#}4{#/blank#}(dào diào) 起{#blank#}5{#/blank#}(qǐ tǐ) 奶{#blank#}6{#/blank#}(nǎi lǎi)
找出下列汉字的正确的读音。
换{#blank#}1{#/blank#}(huàn hàn) 精{#blank#}2{#/blank#}(jīn jīng) 妙{#blank#}3{#/blank#}(mào miào)
掉{#blank#}4{#/blank#}(dào diào) 起{#blank#}5{#/blank#}(qǐ tǐ) 奶{#blank#}6{#/blank#}(nǎi lǎi)
找出下列汉字的正确的读音。
换{#blank#}1{#/blank#}(huàn hàn) 精{#blank#}2{#/blank#}(jīn jīng) 妙{#blank#}3{#/blank#}(mào miào)
掉{#blank#}4{#/blank#}(dào diào) 起{#blank#}5{#/blank#}(qǐ tǐ) 奶{#blank#}6{#/blank#}(nǎi lǎi)
3.多选题- (共4题)

A.速度 | B.质量 |
C.电荷量 | D.比荷 |

A.两小球到达轨道最低点的速度vM=vN |
B.两小球到达轨道最低点的速度vM>vN |
C.小球第一次到达M点的时间大于小球第一次到达N点的时间 |
D.在磁场中小球能到达轨道的另一端,在电场中小球不能到达轨道的另一端 |

A.风针尖端附近的等势面和电场线分布较密 |
B.风针附近的空气在强电场下发生电离 |
C.空气中的阳离子会向风针的尖端运动 |
D.交换金属板与风针所带电荷电性,风针的尖端会有正电荷射出 |

A. 使粒子的速度v<BqL/4m
B. 使粒子的速度v>BqL/4m
C. 使粒子的速度v>5BqL/4m
D. 使粒子的速度BqL/4m<v<5BqL/4m
4.解答题- (共4题)

额定电压 频率 额定洗衣、脱水功率 额定洗衣、脱水容量 整机质量 外形尺寸(长×宽×高) | 220V 50HZ 360W 3kg 33kg 542mm×550mm×920mm |
(1)这台洗衣机在额定电压下洗衣或脱水时,通过洗衣机的电流是多大?
(2)如洗衣、脱水的累计时间为40min,则洗衣机耗电多少度?






(1)当


(2)若小球进入板间做匀速圆周运动并与板相碰,碰时速度与初速度的夹角为 60°,则






(1)油滴在第三象限运动时受到的重力、电场力、洛伦兹力三力的大小之比,并指出油滴带何种电荷;
(2)油滴在P点得到的初速度大小:
(3)油滴在第一象限运动的时间。
5.实验题- (共1题)
-
【1】题量占比
单选题:(2道)
选择题:(4道)
多选题:(4道)
解答题:(4道)
实验题:(1道)
-
【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:1
5星难题:0
6星难题:6
7星难题:0
8星难题:3
9星难题:1