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【单选题】
患儿女,5岁。患轻度室间隔缺损,尚未治疗。现因龋齿需拔牙,医生在拔牙前给予抗生素,其目的是预防A.
上呼吸道感染
B.
牙龈炎
C.
支气管炎
D.
充血性心力衰竭
E.
感染性心内膜炎
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反馈参考答案：
举一反三
【单选题】He called to say he would be late home-something had come __ at the office.
A.
up
B.
in
C.
with
D.
to
【单选题】Miss Zhao opens a bottle of aseptic solution and uses part of them. How long is the solution considered as sterile after being opened
A.
6h
B.
8h
C.
12h
D.
24h
【单选题】Where is Miss Zhao? Look, ______. [ ]
A.
there is she
B.
there does she
C.
there she is
D.
there she does
【简答题】He called to say he would be late home-something had come ____ at the office.
【单选题】He called to say he would be late home—something had come _____ at the office.
A.
upon
B.
with
C.
to
D.
up
【单选题】He called to say he would be late home—something had come ( ) at the office.
A.
down
B.
out
C.
with
D.
up
【单选题】He called to say he would be late home—something had come ( )at the office.
A.
up
B.
down
C.
on
D.
at
【简答题】–Lucy, our English teacher, Miss Zhao. -Glad to meet you, Miss Zhao.
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