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【多选题】
防风的鉴别特征包括A.
扫帚头
B.
蚯蚓头
C.
狮子头
D.
菊花心
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
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【单选题】听力原文：M: Excuse me. Have you been waiting long? W: About ten minutes. M: Did you notice whether the number seven bus has gone by? W: Not while I've been standing here. I'm waiting for the number seven ...
A.
Rainy and cool.
B.
Windy.
C.
Hot and dry.
D.
Cold and dry.
【单选题】听力原文：M: Excuse me. Have you been waiting long? W: Twenty minutes already. M: Did you notice whether the No. 7 bus has passed by? W: Not while I've been standing here. I'm also waiting for the No. 7 bu...
A.
She is waiting for the man.
B.
She is waiting for her mother.
C.
She is waiting for a bus.
【单选题】下列对目前“专家拯救汉字教学”的行动解说不正确的一项是( )
A.
专家联名呼吁拯救汉语教学并发明了几十种汉字识字法，来证明汉字是世界上最容易掌握的语言。
B.
北京一些高校和中央教育科学研究所等单位的一些语言专家聚会，驳斥了社会上流行的“汉字最难学”说法。
C.
专家们已经联名上书有关部门，极力反对汉字拼音化的同时呼吁社会重视汉字识字教学。
D.
专家们认为课改的新理念正在深入人心，探索也正在继续，而且取得不小成绩。
【简答题】螺纹牙型是指通过螺纹轴线的剖切平面截切而得的螺纹轮廓形状。常用的有三角形、 、矩形、锯齿形螺纹。其中 螺纹使用最广泛。
【单选题】听力原文：M: Excuse me. Have you been waiting long? W: About ten minutes. M: Did you notice Whether the number seven bus has gone by? W: Yes, it is. I wish that it would rain and cool off. M: Me too. This ...
A.
She is waiting for the man.
B.
She is waiting for her mother.
C.
She is waiting for a bus.
D.
She is waiting for it to stop raining.
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