下列疾病与"ZollingerEllison综合征"无关的是()
A.胃窦胃泌素瘤
B.可有转移性肝肿瘤
C.空肠溃疡
D.支气管肺癌
E.空肠皱襞增厚
参考答案:D
用坚式计算,其中除法要验算.
37×206=
245×48=
408÷15=
1208÷11=
As is reported, it is 100 years ________ Tsinghua University was founded.[ ]
A. when
B. before
C. after
D. since