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【单选题】
下述概念中，正确的是（ ）A.
直接蔓延是指恶性肿瘤在生长过程中变得越来越富有侵袭性的现象
B.
肿瘤组织与其起源组织在组织结构和细胞形态上的差异称为异质性
C.
肿瘤的间质成分不具有特异性
D.
膨胀性生长的肿瘤均有包膜形成
E.
副肿瘤综合征是由肿瘤转移造成的
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反馈参考答案：
举一反三
【多选题】Try to find out which ones are formal testing.
A.
Proficiency test.
B.
Placement test
C.
Summative test
D.
Proficiency test
【单选题】— How was your day off yesterday? — Perfect! It was my grandma's _____ birthday. We had a big cake. [ ]
A.
eighty
B.
eightieth
C.
the eightieth
【单选题】The becquerel is the correct unit to use in reporting the measurement of:
A.
the rate of decay of a radioactive source
B.
the ability of a beam of gamma ray photons to produce ions in a target
C.
the energy delivered by radiation to a target
D.
the biological effect of radiation
【单选题】I asked him to stop__________noise, for I could not make out what the speaker was saying.
A.
to make
B.
make
C.
making
D.
to making
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