【多选题】What does The Boston Consulting Group matrix helps the management of an organisation assess?
C.
strategic business units
【判断题】在CSS3选择器不需要使用多个《div》标记就能实现多栏布局
【单选题】What does the author imply about Boston?
A.
It has pleasant weather all year round.
B.
It produces wealth as well as high-tech.
C.
It is not likely to attract lots of investors and nerds.
D.
It is an old city with many sites of historical interest.
【单选题】What does the author imply about Boston?
A.
It is not likely to attract lots of investors and nerds.
B.
It is an old city with many sites of historical interest.
C.
It has pleasant weather all year round.
D.
It produces wealth as well as high-tech.
【单选题】在【数据验证】对话框中,【允许】下拉列表中有( )选项。
D.
8项:“任何值”“整数”“小数”“序列”“日期”“时间”“文本长度”和“自定义”
【单选题】在刚体的两个点上各作用一个空间共点力系(即汇交力系),刚体处于平衡。利用刚体的平衡条件可以求出的未知量(即独立的平衡方程)个数最多为
【单选题】在刚体的两个点上各作用一个空间共点力系(即汇交力系),刚体处于平衡。利用刚体的平衡条件可以求出的未知量(即独立的平衡方程)个数最多为( )。
【多选题】为什么我国决定自行研制大型运输机运20,而不是仿制技术成熟,设计成功,我国也购买与使用了多年的俄罗斯的伊尔76运输机?
B.
伊尔76技术上已经落后,关键是设计上不能很好的满足目前我国需求,如机舱容积小,无法运输我国主要装备。
C.
我国已经积累多年的大飞机研究和制造经验,完全可以研制出满足我国需求的大型运输机。
D.
自行研制大型运输机可以锻炼和提高我国研究水平,也有利于改进提高飞机性能和增加飞机用途。