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【多选题】
以下关于手动挡车辆变速器的使用方法描述正确的是（）A.
换挡前离合器踩到底，操纵变速杆时动作要轻快、准确、柔和，不可用力过猛，也不要硬拉硬推，使齿轮发响；以免变速器操纵机构受损
B.
行驶中，要始终将右手放在变速杆上，以便于及时换挡，且利于保证突发情况下及时挂入空挡，确保驾驶安全
C.
在确保发动机动力能够满足的情况下，应尽量使用低速挡，以减轻机件的磨损和降低油耗
D.
运行中换挡必须选好换挡时机，增挡前，应首先进行汽车加速，当车速升高到一定值时，及时挂入高速挡；降挡时，当车速降到一定值时，方可挂入低速挡
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举一反三
【单选题】When the author says that 'the results of the protests and other tactics have been mixed' (in Para. 3), he means the protest and other tactics______.
A.
have produced desired effects
B.
almost amounted to nothing
C.
have some influence on the public
D.
have proved to be too radical
【单选题】It was luck again, according to Nina, that brought her the role in Mute Wife ______ she is best known.
A.
which
B.
in which
C.
for which
D.
to which
【单选题】Good books can decrease our contentment when we are happy and lessen our troubles when we are sad.
A.
Right
B.
Wrong
【简答题】We hear with our ears, right? Yes, but scientists have known for years that we also hear with our eyes. In a study published in 1976, researchers found that people combined both auditory cues(听力提示) an...
【单选题】Task 2 Read the passage again and choose the best answers. 1.Which of the following is not the disposition of an optimist?
A.
Outgoing
B.
Enthusiastic
C.
Upbeat
D.
Nervous
【多选题】用基准物质草酸钠标定高锰酸钾标准溶液时,需要严格控制的滴定条件有( )。
A.
温度保持在70-85℃
B.
用稀硫酸调节控制溶液的pH在强酸性
C.
滴定速度要与反应速度同步，开始时慢然后稍快终点附近慢
D.
滴定至溶液呈微红色30s不褪色为终点
【单选题】Task 2 Watch the episode again and choose the best answer to each question. 1. Which is not mentioned in the video that can lead to dental emergencies?
A.
Sports injuries.
B.
Falls.
C.
Accidents.
D.
Dental caries.
【简答题】在VB.NET中,假设己与“教学数据库”建立连接myconn,且定义了 Command对象 MyComm,则调用存储过程 sc_procl 的命令是 MyComm=new Sql.SqlCommand ( , )。
【简答题】Listen to the passage again and choose the best answers to the following questions. Which
is the most difficult challenge for parents in handling children’s music
lessons?A. Choosing the instrument. B...
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