皮皮学，免费搜题
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搜题
【单选题】
长期不吃新鲜蔬菜水果可发生A.
千眼病
B.
坏血病
C.
软骨病
D.
癞皮病
E.
脚气病
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】People _______ our support and help . We must do something at once.
A.
in need
B.
in need of
C.
in need need
D.
in need of need
【单选题】We need to know something about the structure and operation of science because ______.
A.
it is not easy to understand the things that excite and frustrate the scientist
B.
Science affects almost every aspect of our life
C.
Scientists live in a specific subculture
D.
It is easier to understand general characteristics of science
【简答题】滤波的作用是将 直流电变为 直流电。
【单选题】We need to know something about the structure and operation of science because ______.
A.
it is not easy to understand the things that excite and frustrate scientists
B.
Science affects almost every aspect of our life
C.
Scientists live in a specific subculture
D.
It is easier to understand general characteristics of science
【单选题】We need to know something about the structure and operation of science because_________.
A.
it is not easy to understand the things that excite and frustrate scientists
B.
science affects almost every aspect of our life
C.
scientists live in a specific subculture
D.
it is easier to understand general characteristics of science
【单选题】We need to know something about the structure and operation of science because ______.
A.
it is not easy to understand the things that excite and frustrate science
B.
science affects almost every aspect of our life
C.
scientists live in a specific substructure
D.
it is easier to understand general characteristics of science
【单选题】We need to know something about the structure and operation of science because ______.
A.
it is not easy to understand the things that excite and frustrate the scientist
B.
science affects almost every aspect of our life
C.
scientists live in a specific subculture
D.
it is easier to understand general characteristics of science
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