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【单选题】
不注入右淋巴导管的淋巴干是
A.
右腰干
B.
右颈干
C.
右锁骨下干
D.
右支气管纵隔干
E.
以上均不是
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举一反三
【单选题】Every means tried since then.
A.
have been
B.
has been
C.
was
D.
were
【单选题】Every means been tried since then
A.
has
B.
have
C.
is
D.
are
【简答题】Every means _____ tried but without much result. [     ] a. has been b. have been c. are d. is
【多选题】支沟通航要求水深(),底宽()。
A.
0.8~1.0m
B.
1.0~1.2m
C.
2~4m
D.
4~6m
【单选题】Every means _____.
A.
have been tried
B.
has been tried
C.
are tried
D.
were tried
【简答题】某工厂在计划期内要按排生产I、II两种产品,已知生产单位产品所需的设备台时和原料A、B的消耗量如下表。该工厂每生产一件I可获得2元,每生产一件产品II可获得3元,问如何安排生产计划能使得该厂获利最多?(写出相关模型,以及matlab相关代码)
【多选题】某企业在计划期内要安排生产I、II两种产品,这些产品分别需要在 A 、 B 、 C 、 D 四种不同的设备上加工。按工艺规定:产品I和II在个设备上所需要的单位加工时数于下表中。已知各设备在计划期内的有效台时数分别是 12 、 8 、 16 和 12 。该工厂每生产一件产品I可得利润 2 元,每生产一件产品II可得利润 3元 ,问:应如何安排生产,可获得最大利润。 请从下列选项中选择选项,建立线性...
A.
B.
C.
D.
E.
F.
【单选题】对《春江花月夜》这首诗的艺术特点总结错误的是()。
A.
构思精巧
B.
杂乱无序
C.
语言清新明朗
D.
语言婉丽华美
【单选题】Every means been tried since then.
A.
has
B.
have
C.
are
D.
is
【单选题】Every means been tried.
A.
have
B.
has
C.
is
D.
were
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