One sure sign of the fall season is the
sight of scarecrows everywhere. Scarecrows are used for practical reasons by
farmers, and as decorations by many people. You can find scarecrows on farms and
in yards, and also on T-shirts, sweatshirts, and other clothing. Scarecrows were first used over 2000 years ago by farmers who needed to keep birds out of their fields. Crows and blackbirds were always eating the vegetable crops grown by farmers. The farmers had to do something to stop the crows from coming into the fields. They made these human-like objects out of anything they could find. They used sticks, hay, and pine straw, and dressed the scarecrows in old clothing. The farmers tried their best to make these creations look like real people in a field or garden. They hoped that the crows would see the "person" standing in the field A. Last year. B. 10 years ago. C. 2000 years ago. D. Every fall. [单项选择]不用作栓剂基质的有
A. 羧甲基淀粉钠 B. 甘油明胶 C. 椰油酯 D. 可可豆脂 E. 聚乙二醇类 [单选题]三相异步电动机,若要稳定运行,则转差率应( )临界转差率。
A.小于 B.等于 C.大于 D.大于等于 [多选题]绿色通道查验人员严禁使用()开展查验工作,或将( )交予他人使用。
A. 他人卡号 B. 他人账号 C. 本人账号 D. 本人卡号 [单选题]一氧化碳中毒的患者需输注的血液制品是( )。
A.浓缩红细胞 B.纤维蛋白原 C.白细胞浓缩悬液 D.血小板浓缩悬液 E.洗涤红细胞 [单项选择]治疗气瘿应首选()。
A. 海藻玉壶汤 B. 四海舒郁丸 C. 开郁散 D. 逍遥散 E. 桃红四物汤 [判断题] 学徒工、实习人员经三级安全教育培训后可以单独作业。……
A.正确 B.错误 [多选题]新中国在核技术、人造卫星和运载火箭等尖端科学技术领域,取得了一系列重要的成就,主要有( )。
A. 成功爆炸第一颗原子弹 B. 成功爆炸第一颗氢弹 C. 成功发射第一枚中远程导弹 D. 成功发射第一颗人造地球卫星 [简答题]《中国南方电网电力调度管理规程配网分册(试行)》(Q/CSG2063020-2020)规定,在哪些情况可不填写调度操作命令票,但应填写书面形式命令或记录?
[单项选择]若每一条指令都可分解为取指、分析和执行三步。已知取指时间为5Δt,分析时间为2Δt,执行时间为5Δt。如果按顺序方式从头到尾执行完500条指令需______Δt。如果按[执行]k、[分析]k+1、[取值]k+2重叠的流水线方式执行,从头到尾执行完500条指令需______Δt。
A. 5590 B. 5595 C. 6000 D. 6007 [单项选择]选择固定桥基牙时,下列哪一项最不重要()
A. 基牙的固位能力 B. 基牙必须是活髓 C. 基牙的牙周组织健康 D. 基牙的共同就位道 E. 基牙的支持能力 [多项选择]下列哪些是推拿疗法的适应证()
A. 软组织损伤、骨折后关节功能障碍 B. 肢体循环障碍、血栓闭塞性脉管炎 C. 脑瘫、新生儿肌性斜颈 D. 高血压病 E. 以上都不是 [单选题]客运运价杂费收据的乙页是( )联。
A.存查 B.上报 C.旅客 D.报销 我来回答: 提交
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