班集体的基本特征包括()A．明确的共同目标 B．一定的组织结构 C．学生自我管理，自

There were many people at the station. Some were waiting for the train, some were reading newspapers, and some were saying good-bye to their friends or families.

Mary, Jane and Alice were talking so happily that they didn’t know their train was going to leave. At that time the guard called loudly, “The train is leaving. Please hurry.” The three girls heard the guard and two of them jumped onto the train quickly before the train moved. One was left behind. It was Mary. She looked very sad. The guard came up to her and said, “Don’t feel sad. The next train will come in ten minutes.”

“I know.” Mary answered, “But it was my train. My friends only came here to say good-bye to me.”

根据短文内容判断正（T）误（F）。

小题1:There are many people at the bus station.

小题2:Maria and her friends were reading newspaper at the station.

小题3:The guard told them to get on the train.

小题4:Jane was left behind.

小题5:Mary came to the station to say good-bye to her friends.

关于肝转移癌的超声表现，错误的是（）。

A.以强回声最多见

B.较大的肿瘤中心部位容易发生坏死液化

C.肿瘤周围有弱回声晕，一般较细而规整

D.常见多发肿瘤，单发灶较少见

E.典型图像呈牛眼征或同心圆征

首选紧急处理措施为

A．肌注654-2

B．静脉推注肼苯哒嚎

C．静脉滴注甘露醇

D．静脉滴注硫酸镁，镇静剂

E．肌注安定

为了防止对设备产生工频干扰，对信息技术设备供电电源宜采用下列接地系统中的（）。

A.TN-S

B.TN-C-S

C.TT

D.TN-C

备案部门在收讫竣工验收备案文件（）内，对备案文件进行审查。

A、10日

B、12日

C、15日

D、18日