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【简答题】
数列{ }是公比为 的等比数列, , (1)求公比 ; (2)令 ,求{ }的前 .
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【单选题】Projects requiring skills not possessed by the workers are more difficult to accomplish; so, time must ______________________the project to allow these workers to obtain the needed skills.
A.
factor ... into
B.
subject to
C.
get stuck on
D.
come into play
【单选题】The projects ______________by the end of 2002 will expand the city' s telephone network to cover 1,000,000 users.
A.
being accomplished
B.
to be accomplished
C.
accomplished
D.
having been accomplished
【单选题】钟摆试验常用于下列哪项的评定
A.
上肢肌痉挛
B.
颈部肌肉痉挛
C.
下肢肌痉挛
D.
腹肌痉挛
E.
面肌痉挛
【简答题】《四川省短时、临近天气预报业务暂行规定》中短时、临近预报业务是指在汛期和强对流天气易发期开展的未来()小时内的天气和气象要素预报业务,主要预报产品为0~6小时的短时预报和0~2小时的临近预报。
【简答题】_________指从 PLC 的输入信号变化开始到引起相关输出信号的改变所需的时间。
【判断题】PLC的扫描速度是指PLC从输入端口获得外部信号的速度
A.
正确
B.
错误
【多选题】下列各组药物的配伍能增效的是
A.
SMZ与TMP
B.
丙磺舒与青霉素G
C.
舒巴坦与头孢哌酮
D.
克拉维酸与羟氨苄西林
E.
SMZ与MTX
【简答题】Projects requiring skills not possessed by the workers are more difficult to accomplish; so, time must ______________ the project to allow these workers to obtain the needed skills.
【单选题】若要禁止所有ftp用户登录FTP服务器后切换到FTP站点根目录的上级目录,则相关的配置应是( )。
A.
chroot_local_user=NO chroot_list_enable=NO
B.
chroot_local_user=YES chroot_list_enable=NO
C.
chroot_local_user=YES chroot_list_enable=YES
D.
chroot_local_user=NO chroot_list_enable=YES
【单选题】Sign(s)of respiratory arrest requiring artificial respiration is(are)______.
A.
vomiting
B.
blue color and lack of breathing
C.
irregular breathing
D.
unconsciousness
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