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【单选题】
乳腺囊性增生病( )。A.
乳房肿胀疼痛甚至呈搏动性，患处有压痛的肿块，表面皮肤红热，同时可有体温升高
B.
原发于大乳管内，渐移行至乳头，起初乳头刺痒，灼痛，接着出现湿疹样病变，乳头和乳晕的皮肤糜烂、潮湿，有时覆盖有黄褐色的鳞屑样痂皮
C.
乳房胀痛呈周期性，发生于月经前期，肿块可局限于乳房的一部分，或分散于整个乳房，在后可能缩小，腋窝淋巴结不肿大
D.
发生乳管近乳头的膨大部分，瘤体一般较小，带蒂且有绒毛，乳头易出现血液溢液
E.
乳房单发肿块，好发于外上象限，，边界清楚，表面光滑，易推动，月经周期对肿块大小无影响
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举一反三
【单选题】已知int a，b；下列switch语句中正确的是（）
A.
switch(a){ case a:a++;break; case b:b++;break;}
B.
switch(a+b){ case 1:a++;break; case 2:b++;break;}
C.
switch(a*b){ case a*b:a++;break; case a/b:b++;break;}
D.
switch(a/10+b){ case a+b:a++;break; case a-b:b++;break;}
【单选题】There _____ great changes in our hometown in the past fifteen years. [ ]
A.
has been
B.
have been
C.
had
D.
were
【单选题】Language has been changing, but such changes are not so obvious at all linguistic aspects except that of______.
A.
phonology
B.
lexicon
C.
syntax
D.
semantics
【单选题】There _____ great changes in our school since 1979. [ ]
A.
have been
B.
were
C.
has been
D.
are
【单选题】Good use___ the natural resources to improve people’s life in this area．
A.
has been made of
B.
has made of
C.
has made
D.
has been made
【单选题】In the past few years, there _____ great changes in my hometown. [ ]
A.
have been
B.
were
C.
has been
D.
was
相关题目：
【单选题】There _____ great changes in our school since 1979. [ ]
A.
have been
B.
were
C.
has been
D.
are
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