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【简答题】
充血性心力衰竭患儿每次应用洋地黄前应测量_______，必要率。
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举一反三
【单选题】La petite fille a répliqué :《Je n'ai pas menti.》
A.
La petite fille a répliqué qu'elle n'a pas menti.
B.
La petite fille a répliqué qu'elle n'avait pas menti.
C.
La petite fille a répliqué qu'elle n'aurait pas menti.
D.
La petite fille a répliqué qu'elle n'aurai pas menti.
【多选题】关于设备技术寿命的说法,正确的有( )。
A.
设备的技术寿命是指设备年平均维修费用最低的使用年限
B.
设备的技术寿命一般长于设备的自然寿命
C.
设备的技术寿命会受产品质量和精度要求等因素的影响
D.
设备的技术寿命主要是由设备的有形磨损决定的
E.
一般情况下,科学技术进步越快,设备的技术寿命越短
【单选题】According to Paragraph 2, why may a person suddenly forget who has called?
A.
He may leave his prefrontal cortex temporarily damaged.
B.
He is probably interrupted by another task.
C.
He is probably not very familiar with the person he has called.
D.
He may need a rest between dialing and speaking.
【单选题】Alison is
A.
traveling salesperson who drives many miles each day to visit her clients. She gets utility from the purchase of gasoline, but she doesn't care which brand of gasoline she consumes. Suppose she has a daily budget of $100 for gasoline and can purchase from two companies, PB and Noxxe. Today she notices that the price of a gallon of gas at PB is $2.50 and the price of a gallon of gas at Noxxe is $3.33. What is her optimal purchase of gas? A、 . 40 gallons at PB and 30 gallons at Noxxe
B.
none at PB and 30 gallons at Noxxe
C.
20 gallons at PB and 15 gallons at Noxxe
D.
40 gallons at PB and none at Noxxe
【单选题】What may happen if a person has got a coupon?
A.
He may keep it.
B.
He may give it to his relative.
C.
He may buy more things.
【简答题】植物组织培养技术的三大难题分别是____,____和_____。
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