【多选题】考虑热水瓶的保温机理,如果将其玻璃夹层完全抽真空,有效削弱了:
【单选题】You will hear 8 statements. The statements will be spoken twice. After each statement, there will be a pause of 10 seconds. During the pause, you’ll read the 4 choices marked A, B, C and D. You should...
B.
English is difficult for her.
C.
She doesn't study English.
D.
She doesn't like English.
【多选题】考虑热水瓶的保温机理, 如果将其玻璃夹层完全抽真空,有效削弱了:
【多选题】考虑热水瓶的保温机理,如果将其玻璃夹层完全抽真空,有效削弱了:
【单选题】CONVERSATIONS ( 2017 年 TEM4 Listening ) In this section you will hear two conversations. At the end of each conversation, five questions will be asked about what was said. Both the conversation and th...
A.
It can’t read data from the flash drive.
B.
It has wiped the data from the flash drive.
C.
The files stored in it have got lost.
D.
The files in it can’t be opened.
【单选题】土的抗剪强度,下列说法正确的是()
A.
土体中发生剪切破坏的平面,为最大剪应力作用面
B.
土体中发生剪切破坏的平面,其剪应力等于抗剪强度
C.
土体中某点做一平面,若该面积上的σ和τ在应力坐标上位于两条强度线之间,则表示该点处于弹性状态,未达到极限平衡
D.
剪切破坏面与大主应力作用面夹角为45°-Φ/2
【多选题】考虑热水瓶的保温机理,如果将其玻璃夹层完全抽真空,有效削弱了:
【单选题】《中华人民共和国建筑法》根据建筑施工企业负责安全生产全面责任的人是企业( )。
【判断题】呈单向环流运动的水流,是使河谷凹岸不断地以侧蚀方式朝下游推移的唯一原因。()
【单选题】根据《中华人民共和国建筑法》,施工现场安全由( )负责。