_________ is the author’s controlling point about the topic, it usually includes the topic, or the author’s approach to the topic.
A.The main idea
B.The topic
C.The supporting detail
D.The introduction
A.The main idea
B.The topic
C.The supporting detail
D.The introduction
A、To give an account of the author's hard life at home and at school during the Second World War.
B、To illustrate that words of compassion in times of need enable a person to regain his confidence and exert a lasting influence .
C、To present a picture of different teachers at her school.
B.①②④
C.①③④
D.②③④
B.安全帽由帽壳、帽衬和下颚带三部分组成
C.在领取安全帽时,要首先观察其外观,看是否完好,帽壳有无破损和裂纹
D.在戴安全帽之前,应调整好帽衬,帽衬与帽壳不能紧贴,帽衬顶部与帽壳的间隙应保持在20~50mm,四周应保持在5~30mm
E.戴安全帽时要戴正,同时系紧下颚带
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