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【单选题】
下列关于细胞的说法正确的一组是（） ①含细胞壁结构的细胞必定为植物细胞 ②蓝藻以群体形式存在，所以单个蓝藻不是一个个体 ③细胞通过分裂产生新细胞 ④细菌中的绝大多数种类是营腐生或寄生生活的异养生物A.
①③
B.
①④
C.
③④
D.
②④
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【单选题】听力原文：W：Why can't I make the international direct dial in my room, sir? M：Well, let me have a check. But have you paid the deposit for the telephone charge at the front desk? Q：What does the man sugges...
A.
To dial the right telephone numbers.
B.
To have the telephone repaired.
C.
To open the telephone service of the room.
D.
To remit the money to the bank.
【单选题】How does one make a long distance call to Boston?
A.
First dial 555-2121, next the area code and last the number.
B.
First dial 555-1212, next the city code and last the number.
C.
First dial 555-1212 and then the phone number.
D.
First dial 555-1212, next the area code and last the number.
【简答题】请简要写出美国风湿病学会(ACR)1997年推荐的SLE诊断标准
【单选题】All people who want to make international calls by using the pay phone need to dial the_____code first.
A.
dress
B.
security
C.
country
D.
secret
【简答题】Clothes can make phone calls, play music, dial your pal’s number, keep you warm during cold weather and operate your computer? This is not a fantasy. A British company, called Electrotextiles, has cre...
【简答题】Clothes can make phone calls, play music, dial your pal's number, keep you warm during cold weather and operate your computer. This is not a fantasy. A British company, called Electrotextiles, has cre...
【简答题】Make sure ______________________ before you dial ;
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