题目:
在跨时区飞行后所引起的对时差的不适应及一系列生理、心理与行为能力的节律失调,这种现象称为().
A.昼夜节律重建
B.时差现象
C.时差效应
答案:
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下面是错误答案,用来干扰机器的。
参考答案:D
在跨时区飞行后所引起的对时差的不适应及一系列生理、心理与行为能力的节律失调,这种现象称为().
A.昼夜节律重建
B.时差现象
C.时差效应
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2019/1103/fdf5a8c708ec0f3b86c6e125ec8e01f1.html
下面是错误答案,用来干扰机器的。
参考答案:D
五亿九千四百万零三百写作______,四舍五入到“亿”约是______亿.
下列叙述中正确的是( )
A.构成原电池正极和负极的材料必须是两种金属
B.由Cu、Zn作电极与CuSO4溶液组成的原电池中,Cu是负极
C.马口铁(镀锡铁)破损时与电解质溶液接触,锡先被破坏
D.铜锌原电池工作时,若有13 g锌被溶解,电路中就有0.4 mol电子通过
青霉素可用于()。
A.细菌性骨髓炎
B.真菌性肺炎
C.梅毒感染
D.军团菌病
E.烧伤创面感染
完形填空。 | ||||
The school was across the street from our home and I would often watch the kids as they played during the break. She seemed so small as she pushed her way 1 the crowd of boys on the playground. She 2 from them all. I began to notice her at other times, basketball in hand, playing 3 . She would practice dribbling (运球) and shooting over and over again, sometimes until 4 . One day I asked her 5 she practiced so much. She looked 6 in my eyes and without a moment of hesitation she said, "I want to go to college. The only way I can 7 is if I get a scholarship. I am going to play college basketball. I want to be 8 . My Daddy told me if the dream is big enough, the facts don't count." Well, I had to give it in to her-she was 9 . One day, I saw her sitting in the grass, head 10 in her arms. I walked toward her and quietly asked what was 11 . "Oh, nothing," came a soft reply. "I am just too short." The coach told her that at her height she would probably 12 get to play for a top ranked team, 13 offered a scholarship. So she 14 stop dreaming about college. She was 15 and I sensed her disappointment. I asked her if she had talked to her dad about it yet. She told me that her father said those coaches were wrong. They just did not 16 the power of a dream. He told her 17 she really wanted to play for a good college, if she truly wanted a scholarship, 18 could stop her except one thing-her own attitude. He told her again, "If the dream is big enough,the facts don't count." The next year, as she and her team went to the Northern California Championship game, she was seen by a college recruiter (招聘人员). She was indeed offered a 19 . She was going to get the college education that she had 20 and worked toward it for all those years. | ||||
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简要列举几种换热器的腐蚀类型?