皮皮学，免费搜题
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【多选题】
乳牙根管充填材料要求包括：A.
与乳牙牙根吸收速率接近
B.
具有亲水性，后易吸收，不形成致密团块影响继承恒牙的正常萌出
C.
具有抗菌作用的同时对根尖组织及继承恒牙胚无损害
D.
具有X线阻射性
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】He doesn't dare to leave the house ______________ he should be recognized.
A.
in case
B.
if
C.
provided
D.
so that
【单选题】He doesn't dare to ask the teacher, _______ he?
A.
does
B.
doesn't
C.
daren't
D.
dare
【简答题】请列举名词、动词、形容词、区别词、副词的语法特征。
【简答题】He doesn't dare to leave the house _____ he should be recognized. A) in case B) if C) provided D) so that
【单选题】Rose _________ tell her mother that she didn’t pass the exam.
A.
dare not to
B.
doesn’t dare to
C.
doesn’t dare
D.
dares not
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