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【简答题】
My heart sank when the man at the immigration counter gestured to the back room. I’m an American born and raised, and this was Miami, where I live, but they weren’t quite ready to let me in yet. “Please wait in here, Ms Abujaber,” the immigration officer said. My husband, with his very American last name, accompanied me. He was getting used to this. The same thing had happened recently in Canada when I’d flown to Montreal to speak at a book event. That time they held me for 45 minutes. Today we were returning from a literary festival in Jamaica, and I was startled that I was being sent “in back” once again. The officer behind the counter called me up and said, “Miss, your name looks like the name of someone who’s on our wanted list. We’re going to have to check you out with Washington.” “How long will it take?” “Hard to say ... a few minutes,” he said. “We’ll call you when we’re ready for you.” After an hour, Washington still hadn’t decided anything about me. “Isn’t this computerized?” I asked at the counter. “Can’t you just look me up?” Just a few more minutes, they assured me. After an hour and a half, I pulled my cell phone out to call the friends I was supposed to meet that evening. An officer rushed over. “No phones!” he said. “For all we know you could be calling a terrorist cell and giving them information.” “I’m just a university professor,” I said. My voice came out in a squeak. “Of course you are. And we take people like you out of here in leg irons every day.” I put my phone away. My husband and I were getting hungry and tired. Whole families had been brought into the waiting room, and the place was packed with excitable children, exhausted parents, even a flight attendant. I wanted to scream, to jump on a chair and shout: “I’m an American citizen; a novelist; I probably teach English literature to your children.” Or would that all be counted against me? After two hours in detention, I was approached by one of the officers. “You’re free to go,” he said. No explanation or apologies. For a moment, neither of us moved, we were still in shock. Then we leaped to our feet. “Oh, one more thing.” He handed me a tattered photocopy with an address on it. “If you weren’t happy with your treatment, you can write to this agency.” “Will they respond?” I asked. “I don’t know — I don’t know of anyone who’s ever written to them before.” Then he added, “By the way, this will probably keep happening each time you travel internationally.” “What can I do to keep it from happening again?” He smiled the empty smile we’d seen all day. “Absolutely nothing.” After telling several friends about our ordeal, probably the most frequent advice l’ve heard in response is to change my name. Twenty years ago, my own graduate school writing professor advised me to write under a pen name so that publishers wouldn’t stick me in what he called “the ethnic ghetto” — a separate, secondary shelf in the bookstore. But a name is an integral part of anyone’s personal and professional identity — just like the town you’re bom in and the place where you’re raised. Like my father, I’ll keep the name, but my airport experience has given me a whole new perspective on what diversity and tolerance are supposed to mean. I had no idea that being an American would ever be this hard.
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参考答案:
举一反三
【单选题】5Why 首先成功应用于( )公司。
A.
通用
B.
宝马
C.
丰田
D.
本田
【简答题】三个电阻并联,已知R1=4KΩ,R2=8kΩ,R3=8kΩ,求总电阻R。
【判断题】下图为蒙赛尔色相环()
A.
正确
B.
错误
【单选题】3个电阻并联,已知R1=2Ω,R2=3Ω,R3=6Ω,在3个并联电阻的两端外加电流源IS=18A,则对应各电阻中的电流分别为()。
A.
I1=3A,I2=6A,I3=9A。
B.
I1=9A,I2=6A,I3=3A。
C.
I1=6A,I2=9A,I3=3A。
D.
I1=9A,I2=3A,I3=6A。
【单选题】下列关于SQL命令的叙述中,错误的是( )。
A.
INSERT命令可以将一条新记录插入表中
B.
UPDATE命令可以更新表中已存在的记录
C.
DEl.ETE命令可以删除表中已存在的记录
D.
SELECT命令不能与GRUP BY一起使用
【单选题】以下不是SQL命令的是:
A.
edit
B.
alter
C.
grant
D.
revoke
【单选题】(2分)3个电阻并联,已知R1=2Ω,R2=3Ω,R3=6Ω,在3个并联电阻的两端外加电流源IS=18A,则对应各电阻中的电流分别为()。
A.
I1=3A,I2=6A,I3=9A。
B.
I1=9A,I2=6A,I3=3A。
C.
I1=6A,I2=9A,I3=3A。
D.
I1=9A,I2=3A,I3=6A。
【单选题】关于SQL命令下列说法不正确的是
A.
查看数据库管理系统的中拥有那些数据库的SQL命令式:    show databases;
B.
查看数据库当前使用的数据库引擎可以使用  “show variables like '%storage_engine%' ”SQL命令
C.
查看当前数据库拥有的数据表名称可以使用 “show tabels;”SQL命令
D.
查看数据表结构可以使用 "show table status like '表名' " SQL命令
【简答题】有三个电阻并联,已知R 1 =1Ω,R 2 =2Ω,R 3 =3Ω,已知流经电阻R 2 的电流为1A,试计算R 1 和R 3 上流过的电流?
【简答题】三个电阻并联,已知R1=1Ω,R2=2Ω,R3=0.5Ω,求其等效电阻是多少?
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