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【简答题】
下图为草原生态系统中草原植被、鼠类和食鼠动物数量的变化关系，请根据曲线回答下列问题： (1)图中A代表______，B代表_______，C代表_______。 (2)写出该生态系统的食物链____________________ 。 (3)当草原发生鼠害时，草原植被的数量变化是________，食鼠动物的数量变化是________，两者数量的变化又使鼠的数量恢复正常水平，上述变化说明生态系统具有________________________能力。 (4)_______________是最大的生态系统。
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【多选题】有关湿热灭菌法叙述正确的是( )
A.
湿热灭菌法包括热压灭菌、低温间歇式灭菌、流通蒸汽灭菌和煮沸灭菌等
B.
湿热灭菌效果可靠，灭菌效果与注射剂灭菌前微生物污染过程无关
C.
用于热压灭菌的蒸汽要求是饱和蒸汽
D.
湿热灭菌法不仅适用于真溶液型注射剂灭菌，也适用于供注射用无菌粉末的灭菌
E.
湿热灭菌为热力灭菌，在注射剂灭菌时，温度越高，时间越长，则对注射剂质量和生产越有利
【简答题】A．Fill some forms. B．Have a test drive in the Porsche. C．Have lunch with the woman. D．Try his luck in another car rental company.
【简答题】watch the video and try to fill in the following blanks.
【简答题】Read the passage again and try to fill the blanks
【简答题】Review the words and try to put the right words into the sentences
【简答题】Read the following dialogue and try to fill up the gaps with proper words, phrases, or sentences. Joe ran through the stop sign and was caught by the police officer. Joe: Sir, did I do anything wrong?...
【简答题】Listen to a literature review part of an oral academic presentation and fill the blanks.
【单选题】S1: I always seem to fail every exam I take. S2: Hmm, might it be an idea to try to review systematically. Q: How is the first speaker going to do? 0101dh001
A.
Try his best to learn.
B.
Try to review systematically.
C.
Try his best to take every exam.
D.
Try his best to take every exam carefully.
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