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【单选题】
博鳌亚洲论坛2018年年会于2018年4月8日在()博鳌召开。A.
上海
B.
海南
C.
广东
D.
福建
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皮皮学刷刷变学霸
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【简答题】侧链含有- OH 的氨基酸有 、 和 ,侧链含有- SH 的氨酸有 和 。
【单选题】—The earth goes round the sun. —What did he say? I couldn't hear him. —_________. [ ]
A.
He says the earth goes round the sun.
B.
He said the earth goes round the sun.
C.
He said the earth went round the sun.
D.
He says the earth went round the sun.
【简答题】如图，抛物线y=x 2 +bx+c过点A（﹣4，﹣3），与y轴交于点B，对称轴是x=﹣3，请解答下列问题： （1）求抛物线的解析式． （2）若和x轴平行的直线与抛物线交于C，D两点，点C在对称轴左侧，且CD=8，求△BCD的面积． 注：抛物线y=ax 2 +bx+c（a≠0）的对称轴是 ．
【简答题】如图，抛物线y=x 2 +bx+c过点A（-4，-3），与y轴交于点B，对称轴是x=-3，请解答下列问题： （1）求抛物线的解析式． （2）若和x轴平行的直线与抛物线交于C，D两点，点C在对称轴左侧，且CD=8，求△BCD的面积． 注：抛物线y=ax 2 +bx+c（a≠0）的对称轴是x=- b 2a ．
【单选题】He said _________________________________________.
A.
that the earth goes around the sun .
B.
that the sun goes around the earth .
C.
that the sun went around the earth .
D.
that the earth went around the sun .
【简答题】A．He is down-to-earth. B．He is aggressive and optimistic. C．He is discouraged by his failure. D．He is confident about achieving a real first.
【简答题】The lover of nature is he whose intercourse with heaven and earth becomes ______.
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