皮皮学，免费搜题
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搜题
【单选题】
若初印象是侵袭性牙周炎,最实用、简便的一项辅助检查是( )A.
中性粒细胞趋化
B.
家族史询问
C.
龈下菌斑涂片
D.
X线检查
E.
身系统病检查
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 kept the news ______ himself without telling anyone about it.
A.
to
B.
with
C.
from
D.
in
【单选题】Ann was _____ a good mood and kept _____ jokes to us. [ ]
A.
in, saying
B.
on, telling
C.
in, to tell
D.
in, telling
【单选题】Although ________ to stop, he kept on working
A.
tell
B.
telling
C.
having told
D.
told
【单选题】Peter's mother kept telling him that ______ in the street is dangerous, but he would not listen.
A.
played
B.
will play
C.
playing
D.
been playing
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