皮皮学,免费搜题
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搜题
【单选题】
银杏为雌雄异株植物,其雄球花为什么状?
A.
葇荑花序状
B.
总状花序状
C.
伞房花序状
D.
穗状花序状
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皮皮学刷刷变学霸
举一反三
【简答题】听录音,完成填空
【多选题】【听力B】Fill out the space after the record. The answers are bellow , select the best one and fill out the spaces with only letter from A to L.(听录音完成填空,选择合适的单词,填写A-L字母;注意填写答案时,答案前后一定不要留空格或符号,系统自动阅卷,可能会检...
A.
complete
B.
procedure
C.
arbitrary
D.
completely
E.
switched
F.
functional
G.
responses
H.
initial
I.
determine
J.
applied K. determined L. frequently We now consider those RLC circuits in which DC sources are 1 into the network and produce forced 2 that do not necessarily vanish as time becomes infinite. The general solution is obtained by the same 3 that was followed in RL and RC circuits: the forced response is 4 completely; the natural response is obtained as a suitable 5 form containing the appropriate number of 6 constants; the 7 response is written as the sum of the forced and the natural responses; and the 8 conditions are then determined and 9 to the complete response to find the values of the constants. It is this last step which is quite 10 the most troublesome to students.
【单选题】边坡植被防护的首要目的是?
A.
景观美化
B.
水土保持
C.
固土护坡
D.
美化环境
【单选题】某企业20×9年2月主营业务收入为100万元,主营业务成本为80万元,管理费用为5万元,资产减值损失为2万元,投资收益为10万元,营业外收入1万。假定不考虑其他因素,该企业当月的营业利润为( )万元。
A.
24
B.
15
C.
18
D.
23
【单选题】某企业20×9年2月主营业务收入为100万元,主营业务成本为80万元,管理费用为5万元,资产减值损失为2万元,投资收益为10万元。假定不考虑其他因素,该企业当月的营业利润为( )万元。
A.
13
B.
15
C.
18
D.
23
【简答题】听录音,完成填空
【简答题】【听力A】Fill out the space after the record.(听录音完成填空;注意填写答案时,答案前后一定不要留空格或符号,系统自动阅卷,可能会检测有误。) When a drain-source voltage increases further, however, something rather surprising happens: the 1 current lev...
【简答题】听录音完成填空。 1 を募集します。山田太郎と申します。京都大学の 2 です。趣味は 3 です。 4 は世界一周です。 5 の人と友達になりたいです。どうぞ 6 お願いします。
【简答题】听录音完成填空 共10空 提示:注意顺序
【多选题】Fill out the spaces after the record . The answers are bellow , select the best one and fill out the spaces with only letter from A to M. (听录音完成填空,选择合适的单词,填写A-M字母;注意填写答案时,答案前后一定不要留空格或符号,系统自动阅卷,可能会检测有误...
A.
nickel
B.
hundreds
C.
coil
D.
vacuum
E.
classified
F.
nonmagnetic
G.
pass
H.
provides
I.
field
J.
materials K. path L. vocum M.classify An inductor is basically a 1 of wire. The material around which the coil is formed is called the core. Coils are wound on either 2 or magnetic materials. Examples of nonmagnetic 3 are air, wood, copper, plastic, and glass. The permeabilities of these materials are the same as for a 4 . Examples of magnetic materials are iron, 5 , steel, cobalt, or alloys. These materials have permeabilities that are 6 or thousands of times greater than that of a vacuum and are 7 as ferromagnetic. A ferromagnetic core 8 a better 9 for the magnetic lines of force and thus permits a stronger magnetic 10 .
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