---Would you like to go out for a picnic? ---Yes, it’s ________day.
A. so a beautiful
B. so beautiful
C. such a beautiful
D. such beautiful
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The oxygen in the air we breathe mixes _________our blood and gives us life.
A. in
B. with
C. up
D. on
Do I have to take this medicine? It ________ so terrible.
A. tastes
B. is tasting
C. is tasted
D. has tasted
当初期支护出现大面积渗漏水或支护结构变形较大时,应采用()进行堵水加固。
A. 超前帷幕注浆
B. 超前小导管注浆
C. 径向注浆
D. 管棚注浆
铁路隧道防水板的焊接应采用(),且单条焊缝的有效宽度不应小于15mm。
A. 无焊缝
B. 单焊缝
C. 双焊缝
D. 多焊缝