【简答题】consume; security; innocent; equally; destination; traditional; physically; indicates; significanc e; plain; mostly; follows; annual; estimated; fueled. 请将以上单词分别填入下列空格: ...
【简答题】Read and choose. (读句子,选择正确的答语) ( )1. Is this a library? ( )2. Your school is so cool! ( )3. How many students are there in your class? ( )4. Do you have a can? ( )5. Where is t...
【简答题】Read and choose.(读一读,选一选) ( )1. A. B. ( )2. A. B. ( )3. A. B.
【多选题】下列说法正确的有哪几项?
A.
透水盖重主要适用于坝基不透水层较薄、渗漏严重、有冒水翻砂现象,或坝后长期渗漏积水、大面积沼泽化、甚至发生管涌和流土破坏的情况
B.
垂直铺塑技术是运用专门开沟造槽的机械,开出一定宽度和深度的沟槽,在沟槽内垂查铺设土工膜,再用土回填沟槽,形成以土工膜为主体的垂直防渗墙
C.
排渗沟是坝基下游排渗的措施之一,常设在坝下游靠近坝趾处,且垂直于坝轴线
D.
所谓高压喷射灌浆是以置入地基的灌浆管上很小的喷嘴中,喷射出高压或超高压的高速喷流体,利用喷流体的高度集中、力量强大的动能冲击和切割土体,同时导入具有固化作用的浆液与冲切下来的土体就地混合
【简答题】Look, read and choose.读句子,根据图片选出单词。 1. -What is it? -lt's a____. 2. They are____. 3. I have a .