【题目】 ,Anna did not feel happy at all.
A. As she was well married
B. Well married as she was
C. Well married as was she
D. Married well as she was
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【题目】You are waiting at a wrong place. It is at the hotel __________ the coach picks up tourists.
A. who
B. which
C. where
D. that
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【题目】(12分)阿尔茨海默病(AD,俗称“老年痴呆”)是一种严重的中枢神经系统退行性疾病。研究表明,AD病人的神经细胞外β淀粉样蛋白(Aβ)沉积,这种物质的沉积会损坏周围神经细胞膜和线粒体膜,导致神经细胞的损伤。下图表示两类神经元及突触的差异,请回答下列问题。
(1)在神经冲动由图中A点传到D点的过程中,B处兴奋时膜外电位为________,C处发生的信号转换是_________________________。
(2)研究发现,病变个体中Aβ的沉积使突触小体中线粒体损伤,引起乙酰胆碱(一种神经递质)的合成和释放量________,兴奋在神经细胞之间的传递速率________,病人表现出记忆障碍。
(3)乙酰胆碱与位于________上的相应受体结合后,会立即被乙酰胆碱酯酶催化水解,其生理意义是___________________________________________。
(4)向患者体内注射抗Aβ的抗体是治疗AD的方法之一,其原理是_____________________________________________________。
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【题目】I hope this book will be to the beginners of English
A. some help
B. great help
C. for very help
D. of some help
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【题目】 (2017·北京) People __________ better access to health care than they used to, and they’re living longer as a result.
A. will have B. have C. had D. had had
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【题目】
--- Why didn’t you , Billy?
--- Sorry, dear. But I really forgot where I was supposed to meet you.
A. make a promise
B. break your promise
C. keep your promise
D. lose your promise
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【题目】The Eagles went home because they did not win the tournament.
A. angrily and bitterly B. angrily and bitter
C. angry and bitterly D. angry and bitter
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【题目】
--- What made his mother so angry?
--- the exam.
A. Because he didn’t pass
B. His not passing
C.He passed
D. Because he not passing
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【题目】(2017·北京) The little problems __________ we meet in our daily lives may be inspirations for great inventions.
A. that B. as C. where D. when
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