【单选题】— Hurry up!It's already 8:20. — ________ ! It takes only 20 minutes to get to the station and the train doesn't leave until 9:20. [ ]
【单选题】It takes her about 20 minutes _______to school.
【单选题】It only __________ him 20 minutes __________ to his office every day.
C.
takes; drive D takes took
【判断题】已选择执行《企业会计准则》的小企业,不得在执行《企业会计准则》的同时,选择执行《小企业会计准则》的相关规定。( )
【单选题】关于母儿间的血液交换,以下哪项错误
A.
母体血液以每分钟500ml的流速,经子宫螺旋动脉及其终末分支流入绒毛间隙
B.
母体与胎儿间的物质交换主要靠母体血液压力差,而非渗透、扩散及细胞选择力
C.
母儿间的物质交换非直接相通,血管合体膜是母儿进行物质交换的部位
D.
母体血液经底蜕膜螺旋动脉开口通向绒毛间隙,再经开口的螺旋静脉返回母体
E.
胎儿血液经脐动脉及其分支进入绒毛毛细血管,再经脐静脉返回胎儿体内
【单选题】与GMP有关的物料检验活动均应当有记录,记录应当及时填写,内容要求为
【单选题】It takes Mr Wang 20 minutes lunch every day.
【单选题】Tom takes 20 minutes to cook an egg and 5 minutes to make a sandwich. Jerry takes 15 minutes to cook an egg and 3 minutes to make a sandwich. Tom has a comparative advantage in ________ and Jerry has ...
A.
cooking eggs; making sandwiches
B.
making sandwiches; cooking eggs
C.
neither of these activities; both activities
D.
both activities; neither of these activities
【判断题】门式刚架斜梁的定位轴线是沿梁长取在梁截面中线的位置。