更多"[单选题]根据 2020 年 12 月全球碳项目（Glo b al C"的相关试题:
[单选题]根据 2020 年 12 月全球碳项目（Global Carbon Project， GCP） 发布的《2020 年
全球碳预算》报告估计， 陆地和海洋大约吸收了全球 B 的碳排放
A.50%
B.54%
C.60%
D.45%
[单选题]在普通线路钢轨接头轨缝的标准尺寸计算公式a0＝aL(tz－t0)＋ag／2中，tz是根据Tmax和Tmin求出的，Tmax和Tmin是指当地（ ）。
A.历史最高和最低气温
B.年度最高和最低气温
C.历史最高和最低轨温
D.年度最高的最低轨温
[多选题]SWPS温度控制仪AL1和AL2分别是（ ）。
A.A.第一报警回差
B.B.第二报警回差
C.C.第一报警值
D.D.第二报警值
[单选题]CRH380A/AL三级修时，CRH380AL型动车组制动盘表面凹槽≤（ ），制动盘偏磨最高点和最低点之差≤( )。
A.1.0mm 1.0mm
B.0.8mm 1.5mm
C.0.8mm 0.8mm
D.1.0mm 0.8mm
[单选题] 溶液中有Al⁺和Zn⁺时，在pH等于5.5的酸性溶液中，可用（ ）掩蔽Al⁺以滴定Zn⁺ "
A.EDTA
B.NH₄F
C.甲醛
D.KCN"
[单选题]在Fe3+、Al3+、Ca2+、Mg2+ 混合溶液中,用EDTA测定Fe3+、Al3+ 的含量时,为了消除Ca2+、Mg2+的干扰,最简便的方法是（ ）。
A.沉淀分离法
B.控制酸度法
C.配位掩蔽法
D.溶剂萃取法.
[单选题]㠊/AL、380A统、380AL统型动车组抗蛇行减振器安装:用棘轮扳手紧固螺母，另外1人再使用扭矩扳手打上相应扭矩，使用24mm套筒头，扭矩（ ）N.m
A.180
B.200
C.220
D.230
[单选题]P波规律出现,PR间期逐渐延长,直至一个P波后脱落一个QRS波群,漏搏后PR间期又由缩短逐渐延长,周而复始,考虑为( )
A.A一度房室传导阻滞
B.B二度Ⅰ型房室传导阻滞
C.C二度Ⅱ型房室传导阻滞
D.D三度房室传导阻滞 D窦性停搏
[简答题] Commercial paper securities are unsecured promissory notes, issued by corporations, that mature in no more than 270 days.
[单选题] All insurance is subject to several basic principles, including all of the following except that
A. the insured must provide full and accurate information to the insurance company.
B. the insured is to profit as a result of insurance coverage.
C. the loss must be quantifiable.
D. there must be a relationship between the insured and the beneficiary.
[简答题]She felt a deep sense of responsibility to alleviate suffering of those in need, especially children.
[判断题]水处理程序中AL表示蜂鸣器。
A.正确
B.错误
[填空题] Online security will not be not a problem provided that you never give anyone your password or security details. ( ) )
[单选题]However, the relation between the time and productivity is not always (_____)(成正比).
A.vacation
B. positive
C. mean
D. evaluate
