| One of the many oddities of migration
policy is that immigrants coming in to work permanently are usually a minority
of those who arrive legally. Most (1) countries admit
migrants mainly on grounds that have (2) to do with work.
They also admit two large groups on grounds that have nothing to do with their
skills or education, (3) these characteristics may determine
(4) rapidly they integrate. Almost everywhere, the biggest group (5) relatives of those who have already (6) . In the United States they (7) three-quarters of all legal (8) migrants. America even gives a few visas to (9) adult siblings. In parts of Burope, family reunification has become family formation, (10) sometimes delays integration: for instance, it allows third-generation Pakist A. and B. but C. yet D. still [单选题]智能用电管理成效指标中规定,线下服务客户满意率达到（ ）及以上的，得满分。
A.0.95 B.0.99 C.0.9 D.0.98 [单项选择]直肠癌多发于（）。
A. 直肠上1/3处 B. 齿状线附近 C. 直肠乙状结肠交界处 D. 腹膜返折以上直肠 E. 直肠壶腹部 [判断题]当频率和材料一定时，通常横波对小缺陷的检测灵敏度高于纵波因为横波的质点振动方向对缺陷较敏感。
A.正确 B.错误 [单选题]用于对某一项行政工作作比较具体规定的规范性文件，称作（ ）。
A.办法 B.法规 C.条例 D.决定 [单选题]凡是要求没有稳态变差的系统，都应选用（ ）控制作用。
A.积分 B.微分 C.比例 D.震荡 [多项选择] Your database operates in ARCHIVELOG mode and all the tablespaces are online. Due to a user error， you decided to perform an incomplete recovery. Which two tasks would you be required to perform in the recovery process？ （）
A. open the database with the RESETLOGS option B. open the database with the RESTRICTED option C. recover all the data files to the same system change number （SCN） D. recover to the required SCN only that data file in which the error occurred [判断题]有些单位和个人对事故隐患或者安全生产违法行为,无权向负有安全生产监督管理职责的部门报告或者举报。
A.正确 B.错误 [判断题]靠近油罐的第一个阀门可采用铸铁阀。
A.正确 B.错误 我来回答: 提交
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