皮皮学，免费搜题
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【多选题】
汽动给水泵的汽源主要有 :A.
新蒸汽
B.
热蒸汽
C.
主机抽汽
D.
热再热蒸汽
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举一反三
【单选题】Which objective of a good speech introduction is fulfilled by the following statement? Today we will explore the three most important forms of intellectual property protection—copyrights, trademarks, ...
A.
Preview the body.
B.
Establish the speaker’s goodwill.
C.
State the importance of the topic.
D.
Summarize the introduction.
【多选题】“挫折-攻击”假说认为
A.
攻击总是挫折的结果
B.
攻击总是挫折的前提
C.
在儿童当中，攻击行为较多的是在家里经历过高压和挫折的
D.
挫折的存在总是导致某种形式的攻击
【单选题】Which objective of a good speech introduction is fulfilled by the following statement? Today we will explore the three most important forms of intellectual property protection—copyrights, trademarks, ...
A.
Relate to the audience
B.
Preview the body
C.
Establish the speaker’s credibility
D.
State the importance of the topic
【单选题】Which objective of a good speech introduction is fulfilled by the following statement? Today we will explore the three most important forms of intellectual property protection—copyrights, trademarks, ...
A.
Relate to the audience.
B.
Preview the body.
C.
Establish the speaker’s goodwill.
D.
State the importance of the topic.
【单选题】设y=f(x)的定义域是[-1,1],则y=f(x+a)+f(x-a)的定义域是( ), 其中。
A.
[a-1,a+1]
B.
[-a-1,-a+1]
C.
[1-a,a-1]
D.
[a-1,1-a]
【简答题】设函数f（x）的定义域为（-1，1），则函数y=f（2x-1）的定义域是______．
【多选题】黄褐斑的中医膏方调养的注意事项有( )
A.
要注意排除结核病、甲状腺疾病、红斑狼疮等疾病，积极调治妇科疾病
B.
平时注意起居规律，夏季少食生冷寒凉食品，冬季避免受寒湿侵犯
C.
黄褐斑的发生，虽然与性激素紊乱关系最为密切，但是紫外线照射却能直接导致皮肤色素沉着，加深色斑，所以要尽量避免日光照射
D.
面部慎用含香料的药物性化妆品，忌用刺激性药物及激素性药物
【单选题】Which objective of a good speech introduction is fulfilled by the following statement? Today we will explore the three most important forms of intellectual property protection—copyrights, trademarks, ...
A.
preview the body
B.
establish the speaker’s goodwill
C.
state the importance of the topic
D.
summarize the introduction
E.
relate to the audience
【简答题】设函数f（x）的定义域是N * ，且f（x+y）=f（x）+f（y）+xy，f（1）=1，则f（25）=______．
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