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【多选题】
银杏叶中含有的主要化学成分是( )。A.
槲皮素
B.
酚
C.
银杏叶内酯
D.
葛根素
E.
汉黄芩素
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举一反三
【简答题】请填写下面下划线部分的函数或关键字,当$_SESSION["user"]为空时跳转。 if(_________($_SESSION["user"]))header("_________:login.php");
【单选题】红、__________、白三色为圣诞色。( )
A.
黄
B.
绿
C.
蓝
D.
紫 解析: 红、绿、白三色为圣诞色。红色代表圣诞老人，绿色代表圣诞树，白色代表白雪。
【简答题】On Autumn Equinox, the southerners customarily have _______, the seasonal vegetables in autumn, and take qiutang,a soup made of fish and vegetables.
【简答题】One person out of three who graduated from university in the past six years is in a job requiring only the skills of a school-leaver, up from one in four a decade ago. A 21-year-old university graduat...
【简答题】During the weeks of discussion, delegations from groups who are interested in the resolution may call on representatives to their point of view.
【单选题】在集约化饲养条件下,由于密度高,疾病极易蔓延,致使____增加;同时,由于改善营养和防病的需要,必然要在天然饲料中添加一些化学控制物质来改善饲喂效果。
A.
发病率
B.
死亡率
C.
用药频率
D.
传染率
【单选题】During the weeks of discussion, delegations from groups who are interested in the resolution may call on representatives to their point of view .
A.
get rid of
B.
disagree with
C.
pa y respect to
D.
s tand up fo r
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