HLA 分子不具有的结构是? A.
肽结合区 B.
铰链区 C.
跨膜区 D.
胞浆区

A discrepancy between an existing and a desired state o...

判断题A discrepancy between an existing and a desired state of affairs is an opportunity.
正确
错误

计算放大器工作在线性区，具有“虚短”和“虚地”的特点。 ...

判断题 计算放大器工作在线性区，具有“虚短”和“虚地”的特点。
正确
错误

The underlined word unbridled can be replaced by ______...

单项选择题The underlined word unbridled can be replaced by _______. 
A.
infinite B.
ungoverned  C.
unlimited