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【单选题】
根据《联合国国际贸易标准分类》第四次修订本,下列属制成品的是( )。A.
未列名化学品及有关产品
B.
饮料及烟草
C.
杂项制品
D.
矿物燃料、润滑油及有关原料
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举一反三
【单选题】On a tank vessel, which of the following substances would be burning in a class 'B' fire?
A.
Oil
B.
Wood
C.
Rags
D.
Electrical wiring
【单选题】设常数p＞0，则幂级数 在其收敛区间的右端点处是( )．
A.
条件收敛的
B.
绝对收敛的
C.
当0＜p≤1时为条件收敛，当p＞1时为绝对收敛
D.
当0＜p≤1时为绝对收敛，当p＞1时为条件收敛
【单选题】What did Bill Gates do at Harvard University?
A.
He developed a small computer to measure raffic flow,
B.
He formed the "Programmers Group" at Harvard Univerity.
C.
He apent many Jong nights. in. front. of the. achool's, computer.
D.
He discussed with his clssmates about staring a new business.
【单选题】What did Bill Gates do at Harvard University?
A.
He developed a small computer to measure traffic flow.
B.
He formed the “ Programmers Group ” at Harvard University.
C.
He spent many long nights in front of the school ’ s computer.
D.
He discussed with his classmates about starting a new business.
【单选题】设幂级数在处收敛，则此级数在处( ). A．条件收敛 B．绝对收敛 C．发散 D．收敛性不能确定
A.
设幂级数 ∑an(x-1)^n在x=-1 处收敛，则此级数在 x=2 处( ). A．条件收敛
B.
绝对收敛
C.
发散
D.
收敛性不能确定
【单选题】What did Bill Gates do at Harvard University?
A.
He developed a small computer to measure traffic now .
B.
He formed the “Programmers Group” at Harvard University .
C.
He spent many long nights in front of the school’s computer .
D.
He discussed with his classmates about starting a new business .
【单选题】Which of the following substances are excluded by 'drugs' according to this article?
A.
Some kind of wine.
B.
Coffee.
C.
Cigarette.
D.
Penicillin.
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