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【单选题】
Assuming all six soil samples contain the same amount of soil, which of the following statements is LEAST accurate?A.
The soil samples from the forest contain about the same amount of silt as the soil samples from the grassy field.
B.
The soil samples from the forest contain a smaller amount of clay than the soil samples from the grassy field.
C.
The soil samples from the forest contain a smaller amount of sand than the soil samples from the grassy field.
D.
The soil samples from the forest contain a larger amount of loam than the soil samples from the grassy field.
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【多选题】下列对中国古代数学的描述中,正确的是( )。
A.
中国数学的萌芽期可追溯至4000多年前，战国时期已经有了“圆、方、平、直”等形状的概念
B.
商代甲骨文的自然数已经使用十进位制
C.
先秦的八卦学说是古老的二进位制
D.
西周贵族子弟要求学习“六艺”，其中就有“数”
E.
战国时期，九九乘法口诀开始成为士人的普遍知识，有了分数的概念
【简答题】Almost every day, we discuss the topic of health, especially for kids. But w hat is health? “Health” means eating well, getting enough exercise, and having a healthy weight. Here is some advice on hea...
【单选题】将零件浸入渗透液槽中施加渗透剂时
A.
在整个渗透时间内工件必须自始至终地浸在渗透液中
B.
浸渍时间至少为渗透时间的一半
C.
在浸渍时间内，只要保证零件表面全部覆盖渗透液即可
D.
浸渍时间不得超过5分钟
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【简答题】Listen to the recording of the text and decide whether the statements are true(T)or false(F). _____1. In the story, Jesse seemed to be living separately from his parents and his house seemed to be fur...
【单选题】All kinds of vegetables on the market.
A.
can buy
B.
can be bought
C.
is bought
D.
w i ll buy
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