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【单选题】
关于焊下列说法不正确的是( )A.
准备施焊：左手拿焊丝，右手握烙铁，烙铁头应保持干净，并吃上锡，处于随时可施焊 状态
B.
加热与送丝：烙铁头放在焊件上后立即送入焊锡丝；
C.
去丝移烙铁：焊锡在焊接面上扩散达到预期的范围后，立即拿开焊丝并移开烙铁，注意 去丝时间不得落后于离开烙铁的时间
D.
整个过程不得超过 1 ～ 2 秒；但有的器件管脚面积较大，焊接时需延长施焊时间；对于导 线焊接，焊后应稍用力扯拉，以检查其焊接质量。
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【单选题】时代精神，是在新的历史条件下形成和发展的，是体现民族特质、顺应时代潮流的思想观念、行为方式、价值取向、精神风貌和社会风尚的总和。当今我国时代精神的核心是______
A.
自强不息
B.
爱国主义
C.
求真务实
D.
改革创新
【判断题】爱国主义是当今社会时代精神的核心。( ) prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
正确
B.
错误
【单选题】听力原文：M：I found that one of my schoolmates uses drugs. How can I help him, Mom? W：Stay away from him, son. Never think that you can talk him out of the habit if he is addicted. But perhaps you can talk...
A.
Stop thinking about the matter.
B.
Talk the drug user out of the habit.
C.
Be more friendly to his schoolmate.
D.
Keep his distance from drug addicts.
【单选题】听力原文：M: I found that one of my schoolmates uses drugs. How could I help him, Mom? W: Stay away from him, son. Never think that you can talk him out of the habit if he is addicted. But perhaps you can ...
A.
Stop thinking about the matter.
B.
Talk the drug user out of the habit.
C.
Be more friendly to his schoolmate.
D.
Keep his distance from drug addicts.
【单选题】听力原文：M: I found that one of my schoolmates uses drugs. How can I help him, Mom? W: Stay away from him, son. Never think that you can talk him out of the habit if he is addicted. But perhaps you can ta...
A.
Stop thinking about the matter.
B.
Talk the drug user out of the habit.
C.
Be more friendly to his schoolmate.
D.
Keep his distance from drug addicts.
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