【单选题】男性,16岁,时有酱油色尿而就诊。红细胞形态正常,Hb90g/L,网织红细胞3.8%,Coombs试验(-),酸化血清试验阳性,冷热溶血试验(-),最可能的诊断为
【单选题】据统计,五龄蚕相对于蚁蚕,蚕体的质量可以增加( )倍以上。
【单选题】据统计,五龄蚕相对于蚁蚕,蚕体的质量可以增加( )倍以上。
【单选题】Matthew offers to buy Tom's trailer tent for £850. Tom says that he's keen to sell but that he will not accept anything less than £900 in any circumstances. Which of the following best describes the s...
B.
It is a request for information
C.
It is a revocation of the offer
【简答题】试写出一个判别表达式中开、闭括号是否配对出现的算法。
【单选题】对于蜗壳的设计哪一项陈述不正确?
C.
合理的断面尺寸与形状,合适的材料和必要的强度