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【简答题】
Good Usage ( Para.4 ) schedule their time pace each assignment or project according to their daily timetable be overwhelmed by the tasks at hand set timetables prevents them from procrastinating wasting time whispering to friends getting ready to rush out of the class jot down a two- or three-sentence summary scans the notes refresh her memory Good Usage ( Para.5 ) winning formula lies in a student ’ s ability to hand in neat work turns in neat work on the way to scoring an A In the classroom context speak up to clarify any doubts demonstrates a student s intellectual curiosity concisely puts it Better grades come from better understanding. Good Usage ( Para.6 ) tried different approaches explained their solutions to one another laboured on their own frame tentative test questions devise possible test questions Good Usage ( Para.7 ) In the student’s words The more you practise, the more you learn. Last but not least lies in the crucial contribution by parents set high standards took pains to explain
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【简答题】已知两直线的极坐标方程分别是 ,则两直线交点的极坐标为 .
【单选题】下列属于两性离子型表面活性剂的是
A.
肥皂类
B.
脂肪酸甘油酯
C.
季铵盐类
D.
卵磷脂
E.
吐温类
【单选题】下列属于两性离子型表面活性剂是
A.
肥皂类
B.
脂肪酸甘油酯
C.
季铵盐类
D.
卵磷脂
E.
吐温类
【单选题】已知直线 ,则两直线的交点坐标为
A.
(-2,2)
B.
(2,-2)
C.
(2,-1)
D.
(1,-4)
【单选题】已知直线 x + 3 y − 2 = 0 与直线 x − y + 6 = 0 ,则这两条直线的交点坐标为
A.
(4 , 2)
B.
( − 4 , 2)
C.
( − 4 , − 2)
D.
(4 , − 2)
【简答题】.已知两直线的极坐标方程 和 ,则两直线交点的极坐标为________.
【单选题】下列属于两性离子型表面活性剂是
A.
肥皂类
B.
脂肪酸甘油酯
C.
多元醇
D.
豆磷脂
E.
吐温类
【简答题】已知直线 与椭圆 相交于 两点,弦 的中点坐标为 ,则直线 的方程为 .
【判断题】从儿童语言学习的角度来看,语言主要包括由语音、语义、语法和词汇四个方面构成
A.
正确
B.
错误
【多选题】子宫肌瘤的鉴别诊断需要关注以下问题
A.
排除子宫腺肌瘤
B.
与子宫肉瘤相鉴别
C.
排除宫颈病变
D.
排除子宫内膜病变和内膜癌
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