皮皮学，免费搜题
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搜题
【单选题】
必需脂肪酸不包括A.
亚油酸
B.
亚麻酸
C.
油酸
D.
花生四烯酸
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】由( )植物体上切取下来的,用于( )的各种接种材料。包括( )、组织、细胞或原生质体等叫做( )
【单选题】Aftrer surgical operation of bone fracture of the leg which is with a plaster immobilization for a long time, the leg muscle becomes thin and presents as atrophy. The atrophy majorly belongs to ( )
A.
Manlnurtirion atrophy
B.
Disuse atrophy
C.
Endocrine atrophy
D.
Denervation atrophy
E.
Pressure atrophy
【单选题】Lack of meteorological and tidal research means, researchers have to depend on
A.
measuring the output of coconut.
B.
observing the erosion of foreshores.
C.
collecting short interesting accounts concerning climate.
D.
computer model on climate changes.
【单选题】It can be inferred from the last paragraph that scientists______.
A.
lack sufficient means to combat lead pollution
B.
still consider lead pollution a problem
C.
believe lead pollution is not a problem any more
D.
have found way to solve the problem of lead pollution
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