问题 问答题 简答题

无线发射系统的连接方法?

答案

参考答案:

使用无线发射系统时,主机箱后面板串口(即收数口)与发射机连接。串口的RTS信号控制现有控制端输入,当输入为低电平时(0V),进行有线传输,当输入为高电平时(4-5V),进行无线发射。

将无线发射机的天线与发射机主机后面板上的天线接口连接好(此天线必须在接通机器电源前接好,否则易损坏发射机的元器件)。

完形填空

It was a busy morning,about 8:30,when an elderly gentleman in his 80s came to the hospital .I heard him saying to the nurse that he was in a hurry for all appointment(约会)at 9:30

The nurse had him take a    36   in the waiting area,    37   him it would be at least 40 Minutes    38   someone would be able to see him I saw him    39   his watch and decided, since I was    40   busy—my patient didn’t    41   at the appointed hour, I would examine his wound .While taking care of his wound.I asked him if he had another doctor’s appointment

The gentleman said no and told me that he    42   to go to the nursing home to eat breakfast with his    43  . He told me that she had been    44   for a while and that she had a special disease I asked if she would be   45   if he was a bit late. He replied that she   46  knew who he was,that she had not been able to    47   him for five years now. I was    48 , and asked him,“And you    49   go every morning,even though she doesn’t know who you are?”

He smiled and said.“She doesn’t know me but I know who she is” I had to hold back    50  as he left.

Now I    51   that in marriages,true love is    52   of all that is The happiest people don’t   53   have the best of everything;they just    54   the best of everything they have   55   isn’t  about how to live through the storm,but how to dance in the rain.

小题1:A breath       B.test      C seat      D break

小题2:A persuading       B promising    C understanding     D telling

小题3:A if      B before  C since    D after

小题4:A taking off B.fixing       C looking at    D winding

小题5:A very  B also     C seldom D not

小题6:A turn up     B show off     C come on      D go away

小题7:A needed      B forgot  C agreed  D happened

小题8:A daughter   B wife     C mother D sister

小题9:A. late  B well     C around D.there

小题10:A lonely     B worried       C doubtful      D hungry

小题11:A so far      B neither C no longer    D already

小题12:A recognize       B answer C believe D expect

小题13:A moved    B disappointed       C surprised     D satisfied

小题14:A only       B.then     C.thus     D still

小题15:A curiosity B tears    C words  D judgment

小题16:A realize    B suggest C hope    D prove

小题17:A agreement      B expression   C acceptance   D exhibition

小题18:A necessarily     B completely  C.naturally   D frequently

小题19:A. learn     B make   C.favor   D.try

小题20:A Adventure      B Beauty C Trust    D Life

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