更多“延长注射剂药效的主要途径是（）”相关的问题
男衬衫如果袖窿用暗缝，衣片的袖窿不能开得过（），袖山也可略（），装配袖子时有（）。
A.浅，低，少量吃势
B.深，高，少量吃势
C.深，低，无吃势
D.浅，高，无吃势
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1992年国务院颁发的《城市绿化条例》中古树名木指的是（） a、百年以上树龄的树木 b、稀有和珍贵树木 c、具有历史价值和纪念意义的树木 d．具有科普教育意义的树木
A.abc
B.abd
C.acd
D.bcd
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下图所示的由555定时器构成的电路名称为______。
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Passage One Questions 57 to 61 are based on the following passage. Basic to any understa...When was the birth rate in Canada at its lowest postwar level
A．1966.
B．1957.
C．1956.
D．1951.
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糖尿病并发酮症酸中毒时宜选择（）静脉给药。
A.正规胰岛素
B.珠蛋白锌胰岛素
C.低精蛋白锌胰岛素
D.精蛋白锌胰岛素
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肥胖的ⅱ型糖尿病首选（）。
\tA.格列齐特
\tB.阿卡波糖
\tC.控制饮食，增强体育运动
\tD.使用一种口服降糖药
\tE.双胍类药物
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穿心莲的化学成分是：（）
A.穿心莲内酯
B.新穿心莲内酯
C.去氧穿心莲内酯
D.穿心莲内酯苷
E.多糖
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A . 细胞呈圆形或卵圆形
B . 胞核较小，为圆形
C . 胞质内充满粗大的异染性颗粒
D . 有活跃的吞噬能力
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滚筒式采煤机的工作机构，其作用主要是落煤和装煤，同时还作为降尘系统内喷雾压力水的通道。
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交流接触器在不同的额定电压下，额定电流（）。
A.相同 B.不相同 C.与电压无关 D.与电压成正比
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下列各组经脉中，从手指末端走向头面部的是（ ）。
A.胃、大肠、胆经 B.心、脾、胆经 C.小肠、三焦、胃经 D.大肠、小肠、三焦经 E.胆、大肠、三焦经
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Zoos have become an important site for the preservation and protection of wildlife resources, (1) ________ those species that are endangered. (2) ________ , many zoos displayed live animals for public entertainment. Presently some zoos have become scientific and educational (3) ________ that have contributed to the understanding and conservation of wild animal populations. (4) ________ the challenges facing modern zoos are the cost of upgrading old facilities, the struggle to obtain (5) ________ operating funds, and the need to attract more visitors (6) ________ new and entertaining exhibits.Many (7) ________ zoos in American cities have undergone renovation during the last decades of the twentieth century.Among the recent trends in zoo (8) ________ is the construction of new enclosures that resemble natural habitats. The replacement of steel bars and concrete floors (9) ________ appropriately designed surroundings improves visitor appreciation of the (10) _____. Such renovations may (11) ________ stress on animals and allow them to interact with one another (12) ________ naturally.Several major zoos conduct captive propagation programs. A captive propagation problem includes the breeding of (13) ________ zoo or wild animals to obtain offspring, usually for release to (14) ________ or for transfer to other zoos.Captive breeding is one method of (15) ________ some species from extinction.Zoos have expanded and improved public education programs also, with education departments that develop programs (16) ________ to zoo exhibits. Public activities include in-school programs, zoo tours, special events, and websites. The Zoological Society of New York, for example, conducted a (17) ________ project with a Western African to monitor an elephant herd (18) ________ it moved throughout its range.The importance of zoos will increase as natural habitats are diminishing. Through their efforts (19) ________ conservation, education, and environmental advocacy, zoos (20) ________ continue to play a critical role in wildlife preservation throughout the world.
Zoos have become an important site for the preservation and protection of wildlife resources, (1) ________ those species that are endangered. (2) ________ , many zoos displayed live animals for public entertainment. Presently some zoos have become scientific and educational (3) ________ that have contributed to the understanding and conservation of wild animal populations. (4) ________ the challenges facing modern zoos are the cost of upgrading old facilities, the struggle to obtain (5) ________ operating funds, and the need to attract more visitors (6) ________ new and entertaining exhibits.
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土壤养分来源包括（）
A.矿物质风化
B.土壤微生物固氮
C.大气降水施用肥料
D.有机质矿质化
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某增值税一般纳税人因暴雨毁损库存材料一批，该批原材料实际成本为200000元，收回残料价值10000元(不考虑收回材料的进项税)，保险公司赔偿160000元。该企业购入材料的增值税税率为17%，该批毁损原材料造成的非常损失净额是()。
A . A、30000元
B . B、68000元
C . C、78000元
D . D、37000元
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