【单选题】According to the last paragraph , development of education
A.
results directly from competitive environments.
B.
does not depend on economic performance.
C.
follows improved productivity.
D.
cannot afford political changes.
【单选题】According to the writer, the Government's policy on physical education
A.
should not promote team s at all
B.
upholds the principles of the Olympic s
C.
can produce successful Marathon participants
D.
should encourage those qualities pursued by Marathon participants
【简答题】图中细双点划线表示 _ _ _ _ _ _ _ _ ,系 _ _ _ _ _ _ _ 画 法;
【单选题】绘制中纵剖面图时,位于中线面和舷侧之间的构件一般在图中用()画法表示,即用细双点划线表示这些构件可见轮廓的投影,用细虚线表示构件这些构件不可见轮廓的投影。
【判断题】在外板展开图中细双点划线表示强肋骨、舷侧纵桁、旁内龙骨、基座纵桁等构件的简化线。
【单选题】It is suggested in the fourth paragraph that comprehensive education
A.
does not put off ual activity among the s.
B.
helps the s reduce the risk of becoming pregnant by 50%.
C.
helps 50% of the s avoid the ual behavior.
D.
helps the s avoid becoming pregnant more effectively.
【判断题】基本结构图的舱底图中构件的假想连线用细双点划线表示 。