【题目】How does the woman feel?
A. She is pleased with the weather report.
B. She doesn't believe the weather report.
C. She is worried about the coming snowstorm.
科目:高中地理 来源: 题型:
【题目】What are the two speakers talking about?
A. Paying for tickets.
B. Repairing machines.
C. Changing notes.
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科目:高中地理 来源: 题型:
【题目】听一段材料,回答下面几个小题。
【1】When did Jones have to work?
A. In 1948.
B. In 1971.
C. In 1979.
【2】What did Jones study in the University of Pennsylvania?
A. Math.
B. Construction.
C. Computer.
【3】How old was Joe Jones when he completed the work on his master's degree?
A. 48.
B. 55.
C. 65.
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科目:高中地理 来源: 题型:
【题目】How many students took the exam?
A. Forty students.
B. Fifty students.
C. Twenty-five students.
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【题目】What is the man’s attitude towards the cafeteria?
A.He doesn’t mind eating there.
B.He doesn’t like the food there.
C.He likes the food,but it’s crowded.
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科目:高中地理 来源: 题型:
【题目】How is the man now?
A. He is sound and safe.
B. He is going to die.
C. He doesn't feel well.
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【题目】How does the man feel about the doctor's advice?
A. Well worth acting on.
B. Too difficult to follow.
C. A foolish idea.
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科目:高中地理 来源: 题型:
【题目】听一段材料,回答下面几个小题。
【1】How did the woman feel about the result of the game?
A. Cheerful.
B. Excited.
C. Disappointed.
【2】How did the man play in the game?
A. He tried his best, but he failed.
B. He didn't try his best, so he failed.
C. He gave up trying, so he failed.
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科目:高中地理 来源: 题型:
【题目】(7分)请根据以下实验过程,回答有关问题。
实验过程:
①切取洋葱根尖2~3 mm,浸在质量分数为8%的盐酸中,在30 ℃的条件下水解10 min。
②用清水冲洗根尖,再将其放入甲基绿吡罗红染色剂中染色10 min。
③取出根尖,放在载玻片上,用镊子尖端捣碎,放上盖玻片,再放上载玻片,用手指轻压载玻片,以分散细胞。
④取下盖玻片上面的载玻片,镜检。
(1)在显微镜下会看到根尖细胞中的________被染成绿色,原因是_____________________________________________;________被染成红色,原因是____________________________________________________________________。
(2)通过该实验能得出什么结论?____________________________________________________。
(3)用人的血液制作血涂片观察红细胞,能看到上述现象吗?为什么?_________________________________________________________________________________。
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