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【判断题】
放射性化学纯度是指以特定化学形态存在的放射性活度占总放射性活度的百分比
A.
正确
B.
错误
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参考答案:
举一反三
【单选题】下列哪种内存模块的前端总线速度为200MHz?
A.
DDR-333
B.
DDR-400
C.
DDR-667
D.
DDR 4
【多选题】许渊冲提出的诗歌翻译的“三美论”包括?
A.
音美
B.
境美
C.
形美
D.
意美
【判断题】与人打招呼要体现主动性,但还需依照自己身省份来进行合适选择,不可不论地位的高低过分热情。
A.
正确
B.
错误
【判断题】与人打招呼要体现主动性,但还需依照自己的身份来进行合适选择,不可不论地位高低过分热情 。
A.
正确
B.
错误
【单选题】压杆的柔度集中反映了压杆的 对临界应力的影响。
A.
( A )长度、约束条件、截面形状和尺寸;
B.
( B )材料、长度、约束条件;
C.
( C )材料、约束条件、截面形状和尺寸;
D.
( D )材料、长度、截面形状和尺寸。
【多选题】配置砂浆的原料只要是( )。
A.
水泥
B.
细砂
C.
石子
D.
混凝土
【判断题】单相双值电容电动机启动时,采用两个电容并联以增大电容值,达到增大启动转矩的目的,启动后,切除一个电容,减少电容值的目的是为了提高功率因数,有较好的 工 作性能。( )
A.
正确
B.
错误
【单选题】回答下列各题 ·Read this Letter to the editor of The Economist. ·Choose the best sentence from the opposite page to fill each of the blanks. ·For each blank(8-12),mark one letter(A-G)on your Answer Sheet. ·D...
A.
This is in large due to its broadly based tax structure.
B.
New Mexic0’S extractive mineral industries contribute about a third of the state’S $1.9 billion general-fund income in fiscal year l 991.
C.
However.the extractive mineral industry in New Mexico is one of the state’S strongest economic forces.
D.
During fiscal year l 992 New Mexico raised permanent funds worth about$6.1billion.
E.
The combined value of oil and gas production was$2.8 billion.
F.
Some 16,000 employees work in the extractive industries and their wages are among the highest of any major industry.
G.
The$39 million earned by these funds in l 991 was used to finance education and other public services. (8)__________
【简答题】Directions: For this part, you are allowed 35 minutes to write a letter to the editor of a newspaper complaining about the poor service of a bookstore. You should write at least 150 words according to...
【判断题】与人打招呼要体现主动性,但还需依照自己的身份来进行合适选择,不可不论地位高低过分热情。
A.
正确
B.
错误
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