The best time to work a boat into a slip is（）. ["when the wind is against you","with the current setting against you","at slack water","with a cross current"]
在Word中选用“撤消”操作的快捷键是（）。 ["Ctrl+C","Ctrl+V","Ctrl+X","Ctrl+Z"]
分次任意还本适用的贷种有（）。 ["个人额度消费贷款、中长期一般商业性助学贷款","个人额度消费贷款、中长期国家助学贷款","个人额度消费贷款、中长期耐用消费品贷款"]
信用的形式有（）。 ["商业信用","银行信用","国家信用","消费信用"]
强心苷可与氯化钙配合使用。
控制灰温的重要性是什么？
