单项选择题
I hope you will have a_______week with us in China．A.pl...
单项选择题I hope you will have a_______week with us in China．
With a lot of work_______, Jerry had no time to go to t...
单项选择题With a lot of work_______, Jerry had no time to go to the cinema with his daughter．
行标规定：预应力混凝土桥梁用夹具静载锚固效率系数应满足（ ）。A.效率系数≥0.90B.效率系数≥0.92C....
单项选择题行标规定：预应力混凝土桥梁用夹具静载锚固效率系数应满足（ ）。
