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【简答题】
选修4—4:坐标系与参数方程 在极坐标系中,曲线 , 过点A(5,α)(α为锐角且 )作平行于 的直线 ,且 与曲线L分别交于B,C两点。 (Ⅰ)以极点为原点,极轴为x轴的正半轴,取与极坐标相同单位长度,建立平面直角坐标系,写出曲线L和直线 的普通方程; (Ⅱ)求|BC|的长。
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【简答题】首字母和中文提示完成句子。 1. It is i_____ for him to finish so much work in just half an hour . 2. What's the w_____ of the baby giant panda?  It's 100 grams.. 3. Daniel scored _____ (少) points than Sandy. 4. Wha...
【单选题】肝硬化病人血氨增高的诱因是
A.
胃肠运动增强
B.
胃肠道出血
C.
脂肪摄入减少
D.
糖类摄入增加
E.
肠道内细菌活动减弱
【单选题】Part A Directions: Read the following four texts. Answer the questions below each text by choosing A, B, C or D. (40 points) When young people who want to be journalists ask me what subject they shoul...
A.
students of other disciplines than journalism are preferred employees of newspapers
B.
young people should learn other subjects than journalism after leaving school
C.
veterans of the author's trade would give the same advice to puzzled youngsters
D.
young people should diversify their learning subjects to be better employed
【单选题】Part A Directions: Read the following four texts. Answer the questions below each text by choosing A, B, C or D. (40 points) When young people who want to be journalists ask me what subject they shoul...
A.
students of other disciplines than journalism are preferred employees of newspapers
B.
young people should learn other subjects than journalism after leaving school
C.
veterans of the author's trade would give the same advice to puzzled youngsters
D.
young people should diversify their learning subjects to be better employed
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A.
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B.
错误
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the scope of his after-sales service.
B.
the speed of his delivery system.
C.
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stay relaxed
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avoid pain
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A.
胃肠道运动增强
B.
上消化道出血
C.
肠道内细菌活动减弱
D.
脂肪摄入过多
E.
糖类摄取过多
【单选题】肝硬化病人血氨增高的诱因是( )
A.
胃肠运动增强
B.
胃肠道出血
C.
脂肪摄入减少
D.
碳水化合物摄入增多
E.
肠道细菌活动减弱
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