【判断题】海上恐怖主义和海盗行为是对建设丝绸之路经济带最大的非传统安全威胁。
【单选题】By referring to the artificial grammar, the author intends to show ______
A.
its significance in the study.
B.
an inherent pattern being learnt.
C.
its resemblance to the lights.
D.
the importance of night's sleep.
【判断题】小容量晶体管调速器电路由于主回路并接了平波电抗器Ld,故电流输出波形得到改善。
【单选题】为避免造成大范围停电,船舶电网短路保护最主要的是必须具有 。
【单选题】选购显示器时应考虑节能环保要求,以下不属于节能环保的标志是
【单选题】It can be inferred from the first paragraph that ______.
A.
every glance has its significance
B.
staring at a person is an expression of interest
C.
a gaze longer than 3 seconds is unacceptable
D.
a glance conveys more meaning than words
【单选题】By referring to the artificial grammar, the author intends to show______.
A.
its significance in the study
B.
an inherent pattern being learnt
C.
its resemblance to the lights
D.
the importance of a night's sleep
【判断题】海上恐怖主义和海盗行为是对建设丝绸之路经济带最大的非传统安全威胁。