皮皮学，免费搜题
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搜题
【多选题】
增强软文的情感指数,我们可以这样做A.
多增加一些你、你们之类的第二人称代词
B.
使用第三人称的专有名词
C.
直接使用消费者群体的名字
D.
多提目标群体的利益,设身处地为目标群体着想
拍照语音搜题，微信中搜索"皮皮学"使用
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】To succeed in a scien:tific experiment, ______.
A.
one needs being patient person
B.
patience is to need
C.
one needs to be patient
D.
patience is what needed
【单选题】America's emphasis on the importance of education for everyone has spurred scien-tific research.
A.
encouraged
B.
endangered
C.
endorsed
D.
enlarged
【单选题】下列化学方程式中,不能用离子方程式 Ba 2+ +SO 4 2- ==BaSO 4 ↓表示的是( )。
A.
Ba(NO 3 ) 2 +H 2 SO 4 ==BaSO 4 ↓+2HNO 3
B.
BaCl 2 +Na 2 SO 4 ==BaSO 4 ↓+2NaCl
C.
BaCO 3 +H 2 SO 4 ==BaSO 4 ↓+H 2 O+CO 2 ↑
D.
BaCl 2 +H 2 SO 4 ==BaSO 4 ↓+2HCl
【单选题】Esthetics is a science that tries to make clear the laws and principles of _____________ .
A.
design
B.
beauty
C.
ornament
D.
decoration
【单选题】下列化学方程式中，不能用离子方程式H + +OH - =H 2 O表示的是（ ）
A.
HCl+NaOH=NaCl+H 2 O
B.
Ba（OH） 2 +2HNO 3 =Ba（NO 3 ） 2 +2H 2 O
C.
Cu（OH） 2 +2HNO 3 =Cu（NO 3 ） 2 +2H 2 O
D.
NaOH+NaHSO 4 =Na 2 SO 4 +H 2 O
【单选题】According to the author，people are suspicious of the professional judgment of scientists because （ ）．
A.
their pronouncements often turn out to be wrong
B.
sometimes they hide the source of their research funding
C.
some of them do not give priority to intellectual honesty
D.
they could be influenced by their association with the project concerned
【单选题】It is a curious paradox that we think of the physical sciences as 'hard', the social sciences as 'soft', and the biological sciences as somewhere in between. This is interpreted to mean that our knowl...
A.
implication
B.
contradiction
C.
interpretation
D.
confusion
【单选题】下列化学方程式中,不能用离子方程式 Ba 2 + +SO 4 2― ===BaSO 4 ↓
A.
Ba(NO3)2+H2SO4==BaSO4↓+2HNO3
B.
BaCl2+Na2SO4==BaSO4↓+2NaCl
C.
BaCO3+H2SO4==BaSO4↓+H2O+CO2↑
D.
BaCl2+H2SO4==BaSO4↓+2HCl
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