下列各项中,与血液运行关系最密切的脏是()
A.心、肝、脾、肾
B.心、肝、脾、肺
C.心、肝、肺、肾
D.肺、脾、肝、肾
E.心、脾、肺、肾
参考答案:B
—What made Alice so upset? —______.
A.Peter’s leaving without saying goodbye
B.Peter left without saying goodbye
C.Peter was leaving without saying goodbye
D.Peter had left without saying goodbye
有防腐作用的牛乳掺假物是()
A.尿素
B.食盐
C.蔗糖
D.豆浆
E.过氧化氢