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【单选题】
若2/3 lncos2x是f(x)=ktan2x的一个原函数,则k=[ ].
A.
2/3
B.
-2/3
C.
4/3
D.
-4/3
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参考答案:
举一反三
【简答题】芦笋学名______,又名____,在未出土前采收的幼茎色白,称为____芦笋,适宜加工罐头;出土后见阳光变成绿色的,称为____芦笋,适宜鲜食。近年来证实芦笋对____等疾病有一定的预防作用,其营养价值越来越被人们所重视。芦笋原产____,现世界各地均有栽培,其中以________最多。
【简答题】The author uses lots of facts to support his central point of view: America is deteriorating from “the Land of the Free” into “the Land of the Lock”. Could you find any more supporting facts in additi...
【单选题】Read aloud paragraphs 4 to 8 until you have learned them by heart. Then try to complete the passage from memory:(仅选择本题号对应横线处的正确答案,例:第一题只选第一个空的对应答案) It has been replaced by dead-bolt locks, security ch...
A.
suburban
B.
symbol
C.
attached to
D.
electronic
E.
featured
F.
announcing
G.
surveillance
H.
hooked up to
I.
built in
J.
uncommon
【判断题】共青团活动与其他文体活动最大的不同在于活动主体上的差异,即它是由团组织统一领导的。
A.
正确
B.
错误
【单选题】Read aloud paragraphs 4 to 8 until you have learned them by heart. Then try to complete the passage from memory:(仅选择本题号对应横线处的正确答案,例:第一题只选第一个空的对应答案) It has been replaced by dead-bolt locks, security ch...
A.
suburban
B.
symbol
C.
attached to
D.
electronic
E.
featured
F.
announcing
G.
surveillance
H.
hooked up to
I.
built in
J.
uncommon
【单选题】Read aloud paragraphs 4 to 8 until you have learned them by heart. Then try to complete the passage from memory:(仅选择本题号对应横线处的正确答案,例:第一题只选第一个空的对应答案) It has been replaced by dead-bolt locks, security ch...
A.
suburban
B.
symbol
C.
attached to
D.
electronic
E.
featured
F.
announcing
G.
surveillance
H.
hooked up to
I.
built in
J.
uncommon
【简答题】芦笋学名____,又称____ 、等。芦笋的收获季节在____ 。近年来,现代医学研究证实芦笋对____、____等有一定的预防和辅助治疗作用,其营养价值越来越被人们重视。
【简答题】trip wires ___(2)___ up to a police station or private guard firm.
【判断题】共青团活动与其他文体活动最大的不同在于活动主体上的差异,即它是由团组织统一领导的。
A.
正确
B.
错误
【单选题】☆301.厨房生产运转流程,可分为(),食品生产和食品销售三大阶段。
A.
厨房人员
B.
食品原料
C.
管理人员
D.
家畜家禽
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