皮皮学，免费搜题
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搜题
【单选题】
触发神经末梢内囊泡释放的离子是A.
Na+
B.
Ca2+
C.
K+
D.
Mg2+
E.
Cl-
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皮皮学刷刷变学霸
举一反三
【单选题】What does the professor mean when he says this:
A.
He does not want to waste time on something the students already know.
B.
He wants the students to feel comfortable about speaking up in class.
C.
He does not think he needs to go over the topic because it is not critical.
D.
He thinks the students have made a correct assumption about the topic.
【简答题】我某出口公司就钢材出口对外发盘,每吨2500美元FOB广州黄埔,现在外商要求我方将价格改为CIF伦敦。问:(1)我出口公司对价格应如何调整?(2)如果最终按CIF伦敦条件签订合同,买卖双方在所承担的责任、费用和风险方面有何不同?
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