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【简答题】
已知直角梯形纸片OABC在平面直角坐标系中的位置如图所示，四个顶点的坐标分别为O(0，0)，A(10，0)，B(8， )，C(0， )，点T在线段OA上(不与线段端点重合)，将纸片沿过T点的直线折叠，使点A落在射线AB上(记为点A′)，折痕TP与射线AB交于点P，设点T的横坐标为t，折叠后纸片重叠部分(图中的阴影部分)的面积为S； 小题1:(1)直接写出∠OAB的度数； 小题2:(2)当纸片重叠部分的图形是四边形时，直接写出t的取值范围； 小题3:(3)求S关于t的解析式及S的最大值.
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【单选题】–Do you know what Mike does all day? –I know he spends at least as much time watching TV as he _____ his lessons.
A.
is doing
B.
does
C.
spends in
D.
does doing
【单选题】听力原文：M: I was sorry to hear Jack' s being fired. I know he was ill a lot and that he usually went to work late. W: Oh, it wasn' t that. Jack made a big error in this month' s accounting and the boss w...
A.
Because he is always sick.
B.
Because he usually went to work late.
C.
Because he was angry with the boss.
D.
Because he made a mistake in his work.
【单选题】--- Do you know what Tom does all day ? ---- I know he spends at least as much time watching TV as he ____________his lessons.
A.
is doing
B.
does
C.
spends to do
D.
does doing
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【单选题】— Do you know what Tom does all day? — I know he spends at least as much time watching TV as he _____ his lessons. [ ]
A.
is doing
B.
does
C.
spends in
D.
does doing
【简答题】什么是汽车草图的区域线。
【简答题】I know he hates (interrupt) ______.
【单选题】He is my father and I know he will forgive me for _______ I have done.
A.
whatever
B.
no matter what
C.
no matter how
D.
whichever
【单选题】从前,沧州城南有一座临河寺庙,庙前有两尊面对流水的石兽,据说是“镇水”用的。一年暴雨成灾,大庙山门倒塌,将那两尊石兽撞入河中。庙僧一时无计可施,待到10年后 募金重修山门,才感到那对石兽之不可或缺,于是派人下河寻找。按照他的想法,河水东流,石兽理应顺流东下,谁知一直向下游找了十里地,也不见其踪影。这时,一位在庙中讲学的先 生提出其见解:石兽不是木头做的,而是由大石头制成,它们不会被流水冲走,石重沙...
A.
系统思维
B.
创新思维
C.
底线思维
D.
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