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【判断题】
细菌革兰染色性不同是由于细胞膜结构不同 。A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】电路的三种工作状态是通路、开路和(__)。
【单选题】听力原文： More than 40 years ago, John Williams gave away all of his belongings and went off to file mountains to live the way people lived 100 years ago. For food he traps wild animals, fishes in the riv...
A.
wood
B.
bricks
C.
animal skin
D.
old stones
【单选题】Suppose P(A)=P(B)=0.4,P(AB)=0.28, then: P(A|B)= ;P(B|A)= ; =
A.
0.7;0.7;0.5
B.
0.6;0.6;0.52
C.
0.7;0.7;0.52
D.
0.7;0.6;0.52
【单选题】听力原文： More than 40 years ago, John Williams gave away all of his belongings and went off to the mountains to live the way people lived 100 years ago. For food, be traps wild animals, fishes in the riv...
A.
A group of friends.
B.
Nobody, he sleeps outside.
C.
John Williams.
D.
John and his family.
【单选题】听力原文： More than 40 years ago, John Williams gave away all of his belongings and went off to the mountains to live the way people lived 100 years ago. For food he traps wild animals, fishes in the rive...
A.
wood.
B.
bricks.
C.
animal skin.
D.
old stones.
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