【单选题】鸦片战争前夕的清代农业 , 自然经济仍占主导地位 , 但是商业性农业已经出现。鸦片战争后 , 中国的商业性农业有了一定程度的发展。下列各项属于鸦片战争后中国 “ 商业性农业 ” 发展原因的是 ( )
D.
. 清政府对 “ 商业性农业 ” 发展的重视
【单选题】下列生理过程中,属于正反馈作用的是( )。
【单选题】一般位于城市高速公路连接道或公路离城镇繁华路段较偏远地方的饭店是。
【多选题】我国企业破产法规定,除首次债权人会议外,以后的债权人会议可基于下述理由召开()
D.
占全体无担保债权总额1/4以上的债权人向债权人会议主席提议时
【判断题】采用单滚筒采煤机割煤,必须开切口。靠滚筒侧切口长2-3m,背滚筒侧切口长6-10m。
【单选题】下面哪句话体现了主人公有音乐品味?
A.
Sir John was as loud in his conversation with the others while every song lasted as he was loud in his admiration at the end of every song.
B.
Brandon alone, of all the party, heard her without being in raptures. He paid her only the compliment of attention.
C.
Lady Middleton frequently called him to order, wondered how any one ’ s attention could be diverted from music for a moment, and asked Marianne to sing a particular song which Marianne had just finished.
D.
Sir John was as loud in his conversation with the others while every song lasted as he was loud in his admiration at the end of every song.
【单选题】在质谱图中,CH 3 Cl的M+2峰的强度为M峰的
【单选题】李洵在《明清史》中说:“鸦片战争前夕的清代农业,自然经济仍占主导地位,但是商业性农业已经出现。„„商业性农业的发展主要集中在长江以南的苏、杭地区和粤江下游广州附近地区。鸦片战争后,中国的商业性农业有了一定程度的发展。”下列各项属于鸦片战争后中国“商业性农业”发展原因的是()