4.B4.B 解析①当M在AB上时, ∵MN//BC . /BMN =180-∠ABC -180-50° -130" 180-/BMN .MN MB..∠ MNB MBN 2 (180°-130°)/2-25° . ② 如图,当M在AB的延长线上时 V C 1 (第4题) ∵MN∥BC .BMN ∠ABC =50". 当BM =BN时,∠MNB =∠BMN =50°. 当NM =NB时,∠MNB =180° -...
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【题目】如图所示,数轴上的M,两点分别表示有理数m,n,则m,n之间的关系正确的是()MNmn0A.mnB.-mnC.ImInD.-m-n 答案 【解析】 答案:A. 解:由数轴可知mnO,则A正确, 则-m0,则-mn,则B错误; 因为m与原点的距离比n与原点的距离大, 则nm|,故C错误; mn0,则-m-n0,所以D错误. 故选A.相关...
Rick Strassmann reported that intravenous (i.v.) DMT at doses ranging from 0.03 to 0.25 mg/kg DMT freebase (as fumarate) induced peak psychedelic effects at five minutes for the 0.25 mg/kg dose, with plasma DMT concentrations peaking at 16 ng/mL (85 nM) [135]. Subjective effects ...
A气体的摩尔质量是B气体的n倍,同温同压下,B气体的质量是同体积空气的m倍,则A的相对分子质量是( )A.mnB. 29mnC. 29mnD. 29nm
oHXnm+bhgWjAAUo0PIC8oPyJgCl8QBdC7RjWWtfEw7bmqkbdcdu3dT/aK0A39SjYCizENjRUIqznjkJn5fsjabScjtidFG41IeUO+977iGw97Qdm7E86e2zLiG/FhHcUF39+dyWv3KYQy4E5JTSQxGUkwHR232bJLeuwiS/r+gP9LoW6HU1UJ7xWmi54LHnuW0WsP5FYMMYh+Ws03QyLLvdvOdvEOr/B6dZv5sFMB9CzI9I+WnbkpJ3lMLVNTYeEgwGv7D3cDv1jNoj...
(QBATCH) v ⁿw u@í A²m½í ] QBATCH ñ TºOⁿA ⁿwG BCHJOB SBMJOB ⁿO C pAYnm½u@í SBMJOB JOB(OEDAILY) JOBD(QBATCH) LOG(2 20 *SECLVL) : zúαm½ u@Bu@ u@ qTu@ ⌠≤u@í C ÷u@ 106 ziH íC y u@í z σr Bu u@í (WRKJOBD)vⁿO u ...
(2分)在有余数的整数除法中,除数是m,商是n(m、n均不为0),被除数最大是( )A.mnB.mn+1C.nm+m﹣1D.mn﹣m﹣1
相关知识点: 试题来源: 解析 函数f(x)=log_ax^(a-1)是对数函数,即f(x)=(a-1)log_ax是对数函数∴a-1=1,∴a=2,∴f(x)=log_2x(x0)∵21,∴函数f(x)=log_2x是单调增函数,∵f(m)f(n),∴mn0综上所述,答案选择:C 反馈 收藏