皮皮学，免费搜题
登录
搜题
【单选题】
B细胞活化的第一信号A.
BCR复合体
B.
CD19/CD21/CD81/CD225
C.
协同刺激分子
D.
C3d受体
E.
BCR识别特异性抗原
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】虚拟语气 He ____busy yesterday, or he ___you with your experiment. A. was, had helped B. was, would have helped C. had been, would have helped D. were, would have helped
A.
was, had helped
B.
was, would have helped
C.
had been, would have helped
D.
were, would have helped
【单选题】An error of commission is one where:
A.
A transaction has not been recorded
B.
One side of a transaction has been recorded in the wrong class of account, such as non-current assets posted to inventory
C.
An error has been made in posting a transaction
D.
The digits in a number are recorded the wrong way round
【单选题】哪一项不属于风险管理应当遵循的原则( )。
A.
识别项目风险并确定关键风险
B.
评价项目每一种风险的可接受程度
C.
确定最适合承担某种风险的各参与方
D.
对项目风险进行分配
【单选题】Exhibit， error You work as a database administrator for Supportcenter.cn. When you try to connect to the database， you get an error （See exhibit）. What could be the possible reason for getting such an...
A.
Database is not open
B.
Listener is not running
C.
Service name is not correct
D.
Wrong port number used in URL
E.
Usersysdoes have themediaprivilege
相关题目：