皮皮学，免费搜题
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【判断题】
忍冬科植物是子房上位的。A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
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皮皮学刷刷变学霸
举一反三
【单选题】Which of the following is TRUE?
A.
Sometimes we can not see a thing because we look directly at it.
B.
Sometimes we can not see a thing because we use the sides of eyes to see it.
C.
The center of the eye is more sensitive than the sides of the eye after dark.
D.
The center of the eye is as sensitive as the sides of the eye in daylight.
【单选题】A good idea has just ____ to me that we can use the Internet to look for the information we want.
A.
occurred
B.
happened
C.
took place
D.
appeared
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