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【单选题】
复位时RST引脚至少施加( )A.
1 个机器周期以上的正脉冲
B.
2 个机器周期以上的正脉冲
C.
1 个机器周期以上的负脉冲
D.
2 个机器周期以上的负脉冲
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举一反三
【单选题】The distinction between passbook savings deposits and time deposits is that______.
A.
the former pay interest, whereas the latter do not
B.
the former are available only at thrift institutions, whereas the latter are available only at commercial banks
C.
the former do not have scheduled maturity dates, whereas the latter do
D.
actually there is no distinction between these two types of deposits
【单选题】Daylight time is used in many countries because______.
A.
it is an acceptable alternative for standard time
B.
it is a special convention in agricultural society
C.
it is considered an effective way to save energy
D.
it is a practice to make best use of solar energy
【简答题】大学生要成为学习的主人,要求我们树立 ( )的理念。
【单选题】下列关于氟哌利多的药理作用的描述错误的是（）
A.
可阻断多巴胺受体、β-肾上腺素受体、胆碱受体
B.
具有中枢抑制作用，但不能产生遗忘，也无抗惊厥作用
C.
一般剂量时对心血管影响较轻微，但对伴有低血容量，动脉硬化以及高龄病人，仍可导致血压下降
D.
不抑制呼吸中枢，可加强镇痛药的呼吸抑制作用
E.
可预防术后恶心、呕吐
【单选题】It seems that the cold winter ______.
A.
increases the ability to think
B.
is the best time for thinking
C.
is better for thinking than is very warm weather
D.
decreases the ability to think
【简答题】A.The woman calls to change the time of the appointment. B.The mans appointment for annual checkup is today. C.The man doesnt want to see Dr. Grey tomorrow. D.The man remembered the wrong time for ann...
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