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【单选题】
我国现行建筑结构荷载规范规定,结构的目标可靠指标,对于一般延性结构,其值为。A.
37
B.
32
C.
42
D.
2724
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举一反三
【单选题】The ocean water in the region where the storm forms
A.
is heating the hurricanes
B.
evaporates and becomes fuel
C.
heads toward land
D.
turns into water vapor that makes hurricanes stronger
【单选题】The house had one of the windows in the storm yesterday.
A.
breaking
B.
broken
C.
to be broken
D.
break
【单选题】What does "the eye of the storm wanna cry in the morn" imply?
A.
It implies that the singer is caught by the storm in the morning
B.
It implies that the singer often cries in the morning
C.
It implies that "trouble" comes unexpectedly
D.
It implies that the singer's mood changes quickly
【简答题】已知：点P（0，a）在y轴负半轴上，问M（-a 2 -1，-a+1）在第几象限？
【多选题】已知点O（0，0）A（1，2）及B（4，5）及 OP = O
A.
+t O
B.
，试问： （1）当t为何值时，点P在x轴上？点P在y轴上？点P在第三象限？ （2）四边形OABP是否能构成平行四边形？若能，求出t的值；若不能，说明理由．
【单选题】听力原文： The US president's helicopter flew over the path of the deadly storm in the state of Alabama, where eight agers were killed Thursday in the collapse of a high school in the town of Enterpris...
A.
To find out the lost people and animals.
B.
To criticize the authority's poor response.
C.
To assess the federal assistance needed.
D.
To make clear the investment in agriculture.
【简答题】已知函数 f(x)= a? 2 x 2 x + 2 的图象过点 (0， 2 -1) ． （1）求f（x）的解析式； （2）设P 1 （x 1 ，y 1 ），P 2 （x 2 ，y 2 ）为y=f（x）的图象上两个不同点，又点P（x P ，y P ）满足： OP = 1 2 ( O P 1 + O P 2 ) ，其中O为坐标原点．试问：当 x P = 1 2 时，y P 是否为定值？若是，求出y P...
【单选题】听力原文： The US president' s helicopter flew over the path of the deadly storm in the state of Alabama, where eight agers were killed Thursday in the collapse of a high school in the town of Enterpri...
A.
To find out the lost people and animals.
B.
To criticize the authority' s poor response.
C.
To assess the federal assistance needed.
D.
To make clear the investment in agriculture.
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