[判断题]区间通过信号机的编号，一般以信号机坐标公里数和百米数组成，下行编偶数，上行编奇数。

[多选题]螺纹机械防松的方法有()
A.开槽螺母
B.止动垫圈
C.对顶螺母
D.黏合
E.自锁螺母

[判断题]当线圈加以直流电时，其感抗为零，线圈相当于“短路”。
A.正确
B.错误

[单选题]下列新版美元彩钞哪种面额的水印图案不是主景人像图案。 （ ）
A.50美元
B.20美元
C.10美元
D.5美元

[判断题]劳动防护用品不同于一般的商品，直接涉及到劳动者的生命安全和身体健康，故要求其必须符合国家标准。
A.正确
B.错误

[单项选择]利尿剂治疗心功能不全的作用是通过（）
A. 排钠排水
B. 提高心肌收缩力
C. 增加心排血量
D. 扩张血管
E. 减低动脉压

[单选题]根据《合同法》，可撤销合同是指（）的合同。
A.因重大误解订立
B.当事人恶意串通损害第三方利益所订立
C.违反行政法规强制性规定而订立
D.当事人未能履行保密义务而订立

[单项选择]下列各项中，属于营业税应税劳务的是( )。
A. 修理机器
B. 修缮房屋
C. 修复古董
D. 裁剪服装

[单项选择]油驳航行动力来自（）。
A. 人工操作
B. 自行动力
C. 电瓶驱动
D. 依靠拖轮

[判断题]{A}在汛期长时间高水位作用下,渗透坡降变陡,渗流流速加大,可能形成管涌或流土。
A.正确
B.错误

[单项选择]I have no statistics on this,but conversation with friends and dozens of person-on-the-street interviews I saw and heard last month convince me that a lot of Americans felt a sense of personal loss at the death of John F. Kennedy, Jr. Their grief was palpable and clearly genuine. Yet I couldn’t help wondering how many would have reacted this way to the death of a relative, a mother or father, sure. But what about uncle John, who lives across town; or Cousin Tara, who moved to another state; or even, Grandma, whom we see once or twice a year, from the other side of the country
For many of us, the concept of family is a lot narrower than it used to be. Today children go away to college, and take up careers wherever opportunity seems greatest. So instead of growing up in an extended family, with grandparents, aunts, uncles and cousins involved in our day-to-day lives, many of us are truly connected only to our parents and siblings. Many kids today knew little of the lives of relative
A. He is an expert in mental workings.
B. He is an actor.
C. He is a writer on the importance of friends and relatives.
D. He is a clinical psychologist and talkshow host.

[单项选择]TNF-α主要产生于
A. 单核巨噬细胞
B. 淋巴细胞
C. 树突状细胞
D. NK细胞
E. 中性粒细胞

[单项选择]