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【单选题】
若 ∈( , ),则不等式log (1-x )>2的是( )
A.
{x∣-cos }
B.
{x∣-1 或cos
C.
{x∣x或x>cos }
D.
{x∣-1 或-cos
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参考答案:
举一反三
【单选题】外观设计类专利申请中不需要哪项材料?()
A.
请求书
B.
图片
C.
简要说明
D.
权利要求书
【简答题】Complete the following sentence with the words and phrases given in the box. (TEXT I requisite /comprise /chill out / come to mind / look the part TEXT II permeate /wrestle / push the envelope/ run th...
【单选题】___are one of the motivational devices for most companies to have desired actions or behaviours.
A.
deductions
B.
reductions
C.
profits
D.
losses
【单选题】The length of time covered by a set of periodic financial statements, primarily a year for most companies, is referred to as the:
A.
Calendar year.
B.
Accounting period.
C.
Business cycle.
D.
Fiscal year.
E.
Natural business year.
【简答题】Complete the following sentences with by, for, of , on, to or with. 1 Shares in corporations are usually sold ______ the Stock Exchange. 2 One advantage _______ working for TBF is the career structure...
【多选题】电镜所能观察到的范围是(    )。
A.
0.1nm    
B.
1nm    
C.
10nm
D.
1mm    
E.
10μm
【简答题】如图所示简支梁AB,已知F=20KN,L=400mm, 求1—1截面(该截面距A端100mm)及2—2截面(该截面距B端50mm)的弯矩. 图老师学习通另发。 经计算选择答案:A,M1=500Nm(+)、M2=1000Nm(+) B, M1=1000Nm(+)、M2=500Nm(+) C, M1=1000Nm(-)、M2=500Nm(+)
【简答题】A.300Hz~300MHz    B.300MHz~300KHz C.1nm~1μm    D.1μm~1mm E.1mm~1m
【判断题】1 nm = 0.001mm。
A.
正确
B.
错误
【判断题】唐代出现“点心”的名称。
A.
正确
B.
错误
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