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【简答题】
2019 Phase 4_A.mp4 wangyan.mp4 Watch these two videos carefully, the first one is about the background informationa and the topic of this speech contest, while the second one is a contestant's speech. Analyze the speech using the knowledge you learned from our course up to now. A careful review of Week 1-8 will be of great help to you. Note: List your points with explanations or examples one by one, don't write your analysis in one or several long paragraphs. Finish it within 10 days (16th-24th).
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举一反三
【简答题】如 图 13 — 3 — 2 所示电路，如果同时闭合开关 S 1 S 3 ，且断开 S 2 ，则灯 L 1 、 L 2 为 联；要使灯 L 1 、 L 2 组成串联电路，只要闭合开关
【单选题】如图所示，闭合开关S后，灯泡L1亮，电流表有示数，但灯泡L2不亮。原因可能是【图片】
A.
灯泡L2的灯丝断了或灯泡L2与灯座未接通
B.
电流表被烧坏、烧断了
C.
电流表的两个接线柱间被短路
D.
灯泡L2的两个接线柱间被短路
【简答题】Learning foreign languages is considered as the biggest challenge to growth in international markets.()
【简答题】如图所示,闭合开关S,灯L 1 、L 2 都能发光,则甲是____表、乙是____表,此时甲、乙两表的示数之比为3:4,则L 1 、L 2 电阻之比为____。
【单选题】The()between the two playing periods of a football game is only a fewminutes.
A.
internal
B.
reserve
C.
interval
D.
radium
【单选题】Which of the following language is used in the transfer courses allowed by OUC for international students?
A.
Their native language
B.
The native language
C.
A native language
D.
The English Language
【单选题】_________ the right kind of training, these teenage soccer players may one day grow into the international stars.
A.
Giving
B.
Having given
C.
To give
D.
Given
【单选题】如图所示,当开关 S 1 、 S 2 都闭合时,能发光的灯是( )
A.
L ３
B.
L ２ 、 Ｌ ３
C.
L １ 、 Ｌ ３
D.
Ｌ １ 、 Ｌ ２ 、 L ３
【单选题】External dangers usually enforce ______ harmony and subordination.
A.
inside
B.
inner
C.
internal
D.
interior
【简答题】如图11所示，开关S闭合时，通过灯L 1 、L 2 和L 3 的电流分别是0.4A、0.2A和0.8A，则电流表A 1 的示数为 ，A 2 的示数为 ，A 3 的示数为 ，A 4 的示数为
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