皮皮学，免费搜题
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搜题
【多选题】
影响树轮增长的因素主要有:A.
氧气浓度
B.
温度
C.
气压
D.
降水
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
【单选题】--I hear you are not allowed to eat in class. ---Right. It’s one of the ___________in our school.
A.
plans
B.
orders
C.
rules
D.
suggestions
【简答题】教师用红笔批改作业,这是运用了知觉的A. 整体性 B. 理解性 C. 选择性 D. 恒常性 E. 适应性
【简答题】No one is allowed to take the computers home without (permit) ______.
【单选题】To keep the environment clean, no one _____ smoke here. [ ]
A.
allows to
B.
is allowed to
C.
allowed to
D.
allow to
【单选题】— I hear you are not allowed to eat in class. — Right. It's one of the _____ in our school. [ ]
A.
plans
B.
orders
C.
roles
D.
suggestions