单选题:Why do researchers estimate elephant numbers in an area by c

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题目内容:
Why do researchers estimate elephant numbers in an area by counting dung piles ? A.Because elephants are difficult to catch.
B.Because it is not possible to count elephants from a plane.
C.Because it is not possible to keep track of elephants.
D.Because elephants are shy animals.
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答案解析:

患者,女,46岁。有高血压病史,猝然昏厥,不省人事,两手握紧,牙关紧闭,右侧肢体偏瘫。建议选择麝香制剂治疗。 麝香成人的

患者,女,46岁。有高血压病史,猝然昏厥,不省人事,两手握紧,牙关紧闭,右侧肢体偏瘫。建议选择麝香制剂治疗。 麝香成人的内服用量是A.0.03~0.1g B.

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冰片不具有的功效是

冰片不具有的功效是 A.开窍醒神 B.消肿生肌 C.化湿 D.止痛 E.清热

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天竺黄的功效是(  )

天竺黄的功效是(  )

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阅读下面的材料,根据要求作文。俯视是一种愚蠢的自我夸张,仰视是灵魂的削价。站稳脚跟,挺直胸膛,面朝前方,调整好焦距,再放

阅读下面的材料,根据要求作文。俯视是一种愚蠢的自我夸张,仰视是灵魂的削价。站稳脚跟,挺直胸膛,面朝前方,调整好焦距,再放出明亮的眼光——我们平视社会,平视别人

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Young people from poorer families needn't file their income

Young people from poorer families needn't file their income tax forms.A.Right B.

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