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【判断题】
心墙土的防渗体一般布置在坝体中部，有时稍偏向上游，以便同防浪墙相连接，通常采用透水性很小的粘性土筑成。（）A.
正确
B.
错误
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【简答题】The southern regions have ________ relied on foreign investment.(increase)
【简答题】十进制数 -47 用 8 位二进制补码表示为
【单选题】听力原文： Magnificent, peaceful. Just two words to describe the scenic regions of Utah in the Mountain West of the United States. Now, our office offers fabulous, five-day outdoor packages to the state fo...
A.
Historic significance.
B.
Splendor and peacefulness.
C.
Cultural appeal.
D.
Beauty and comfort.
【单选题】听力原文： Magnificent, peaceful. Just two words to describe the scenic regions of Utah in the Mountain West of the United States. Now, our office offers fabulous, five-day outdoor packages to the state fo...
A.
Historic significance.
B.
Splendor and peacefulness.
C.
Cultural appeal.
D.
Beauty and comfort.
【单选题】Ancestral humans continued their global spread to the New World, reaching North America approximately _______ years ago and the southern regions of South America 15,000 years later.
A.
45,000
B.
35,000
C.
25,000
D.
20,000
【简答题】用8位的二进制补码表示下列的十进制数: -47表示为 -121 表示为
【单选题】请找出下面段落中的主题句的位置。 Geographers have found that there are some important differences between the northern and southern polar regions of the earth. The Arctic region, surrounded by masses of land, is in t...
A.
隐含
B.
段首
C.
段中
D.
段尾
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