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【多选题】
两个质点甲与乙,同时由同一地点向同一方向做直线运动,它们的速度一时间(v—t)图像如图所示.下列关于甲、的说法中正确的是()
A.
甲、乙质点在第2s末相遇
B.
甲、乙质点在第4s末相遇
C.
甲、乙相遇前在第2s末相距最远
D.
在前2s内,甲的平均速度比乙的大
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举一反三
【单选题】一般轿车后风窗玻璃采用的除霜方式是( )。
A.
将暖风机热风吹至后风窗玻璃
B.
采用独立式暖风装置并将热风吹向后风窗玻璃
C.
电热丝加热
【简答题】Tang DynastyA. Individual Seating B. Du Zuo C. Tall and long dining tables and chairs; dining utensils, for example, spoon, chopsticks. D. In groups of two or three, table in the front.
【简答题】我建议你提前了解唐朝简史。 I advise you to ___________ ______ the brief history of the Tang dynasty ___________ ______ .
【简答题】发酵过程中引起pH下降的因素有哪些
【多选题】发酵过程中引起pH下降的因素有:
A.
碳源过量
B.
消泡油添加过量
C.
生理酸性物质的存在
D.
氮源过量
【单选题】When did the Imperial Examination come into being?A In the Shang Dynasty B In the Tang Dynasty C In the Sui DynastyD In the Han Dynasty
A.
In the Shang Dynasty
B.
In the Tang Dynasty
C.
In the Sui Dynasty
D.
In the Han Dynasty
【单选题】In the following descriptions related to Tang Dynasty, which one is NOT correct?
A.
The prosperity of the early Tang Dynasty was attributed to Emperor Taizong, this period in history was also known as the "Reign of Kaiyuan".
B.
Capital city Chang’an became the first international metropolis with a population of over 1,000,000 people.
C.
Wu Zetian is the only female emperor in Chinese history.
D.
Concubine Yang and emperor’s wrong appointment of her relatives should be partly blamed for the decline of Tang Dynasty.
【单选题】The discovery of these tombs is _______ for scholars’ studying the history of the Tang Dynasty.
A.
of very important
B.
great importance
C.
of great significance
D.
great significant
【单选题】In Tang Dynasty, the girls who suffer obesity nowadays ______ be regarded as beauties.
A.
will
B.
can
C.
may
D.
would
【简答题】蜂窝移动通信网涉及到OSI参考模型的物理层,数据链路层与()引起数据传输差错的噪声分为随机热噪声和()。
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