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【单选题】
有关肺癌CT增强扫描特点的叙述,下列说法错误的是( )A.
一般认为肺癌强化后CT值高于良性结节，低于活动性炎性病灶
B.
增强幅度大，为20-60Hu
C.
时间-密度曲线上升速度慢，峰值持续时间短
D.
血流灌注高
E.
85%患者最终为均匀强化
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【单选题】X: Could you take me to the airport? Y: Yes, madam. X: The traffic seems terrible. It’s unusual. Y: No, madam. It’s about the same this time every day. Question: Where does this conversation probably ...
A.
In a library.
B.
On a bus.
C.
In a taxi.
D.
On a plane.
【单选题】墙面安装大理石板块时应分层灌浆,灌浆时,第一次灌浆高度不得超过板块高度的( )。
A.
2016-01-02
B.
2016-01-03
C.
2016-03-04
D.
2016-01-05
【单选题】Could you help me to take ______ to the classroom? [ ]
A.
some box of books
B.
some box of book
C.
some boxes of books
D.
some boxes of book
【单选题】- Could you help me to take these books to my office? - Yes, .
A.
for my pleasure
B.
I could
C.
my pleasure
D.
with pleasure
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