【单选题】“沟—渠—路”型式如图,道路布置在灌水田块的上端,位于斗渠一侧。这种布置形式缺点是()
B.
当前可修较窄的道路,随着农业机械化程度提高,道路拓宽比较容易;
C.
机耕道要跨过所有的农渠,必须修建较多的小桥或涵管;
【单选题】听力原文: Recent research has claimed that an excess of positive ions in the air can have an ill-effect on people's physical or psychological health. What are positive ions? Well, the air is full of ions,...
A.
They are becoming insane.
B.
They feel rather bad-tempered.
C.
They become violently aggressive.
D.
They are suffering toothache.
【简答题】通过查阅资料,列举与人类生活密切相关的一元饱和脂肪酸、一元不饱和脂肪酸、芳香酸、二元羧酸、多元羧酸各一种,并简单阐明它们在人们日常生活中的用途。
【多选题】“沟—渠—路”型式如图,道路布置在灌水田块的上端,位于斗渠一侧。这种布置形式优点是()。
B.
当前可修较窄的道路,随着农业机械化程度提高,道路拓宽比较容易;
C.
机耕道要跨过所有的农渠,必须修建较多的小桥或涵管;
【简答题】阅读理解。 Recent research has claimed that an excess of positive ions in the air can have an ill effect on people's physical or psychological health. What are positive ions? Well, the air is full of ions,...
【多选题】脂肪酸的分类方法有哪些
B.
按照饱和程度分为饱和、单不饱和、多不饱和脂肪酸
【单选题】临床疑有DIC,应选择的筛选试验是:
C.
血小板计数、凝血酶原试验、活化部分凝血酶原试验
D.
血小板计数、凝血酶原试验、活化部分凝血活酶时间、纤维蛋白原
【单选题】临床疑有DIC,应选择的筛选试验是
C.
血小板计数、凝血酶原时间、活化部分凝血活酶时间
D.
血小板计数、凝血酶原时间、活化部分凝血活酶时间、纤维蛋白原
【单选题】( )就是将大数据驱动下的信息技术应用于社区的服务和管理,充分利用软硬件资源,使管理服务更加互联化、物联化、智能化。
【简答题】A wave of recent research has pointed to the risks of over praising a child. And it seems that how to draw a line between too little praise and too much has become a high-pressure _ _ act for parents....