较易累及中枢神经系统的是 A．自身免疫性溶血 B．急性淋巴细胞白血病 C．

下列疾病所致的腹泻不属于泌性腹泻的是（）

A.慢性肠炎

B.胃泌素瘤

C.肠易激综合征

D.霍乱

E.血管活性肽瘤

若单项式-4×10^ax^ay²和35xy^b-2的和还是单项式，则其和是______．

_______ about wild plants that they decided to make a trip to Madagascar for further research.

A．So curious the couple was

B．So curious were the couple

C．How curious the couple were

D．The couple was such curious

电力电缆的诊断性试验属于哪类检修？（）

A.A类

B.B类

C.C类

D.D类

对市场出售的一批鲜猪肉进行鉴定，判定其是否腐败变质敏感的指标是______。

A．感观检验
B．挥发性盐基氮
C．过氧化物值
D．菌落总数