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【单选题】
口腔pH值为7时,最适宜的漱口液是A.
1%~3%过氧化氢溶液
B.
生理盐水
C.
2%~3%硼酸溶液
D.
1%醋酸溶液
E.
1%~4%碳酸氢钠溶液
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反馈参考答案：
举一反三
【单选题】the club’s aim is to better relations with the community.
A.
make
B.
set
C.
form
D.
foster
【简答题】Smith
________ as the club’s new manager yesterday.A. confirm B. confirms C. confirmed D. was
confirmed
【单选题】The stadium was named ____ the club’s first chairman , who had high fame .
A.
in case of
B.
in honor of
C.
in search of
D.
in place of
【单选题】A membership card ________ the holder to use the club’s facilities for a period of twelve months.
A.
approves
B.
authorizes
C.
rectifies
D.
endows
【单选题】A membership card ( ) the holder to use the club’s facilities for a period of twelve months.
A.
averts
B.
authorizes
C.
rectifies
D.
enforces
【单选题】According to the club’s rules, members can play ____ .
A.
for 30minutes only
B.
for one hour only
C.
within the booked time only
D.
.longer than the booked time
【简答题】一套完整的刹车液更换包括,( )、( )、( )、( )四个步骤。
【单选题】How many people worldwide can have access to the club’s bimonthly newsletter?
A.
1 million.
B.
2 million.
C.
3 million.
D.
4 million.
【单选题】When the great man arrived, the club’s manager picked him up _____.
A.
calmly
B.
bravely
C.
personally
D.
politely
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