在肌肉中查不到的寄生虫是()。
A.旋毛虫幼虫
B.猪囊尾蚴
C.曼氏迭宫绦虫裂头蚴
D.并殖吸虫
E.以上都不是
参考答案:D
— What do you think of the bottled water?
— I don’t like it at all. It is reported that much nutrition, including some minerals, ______ while it is being processed.
A.are ridded of
B.are gotten rid of
C.gets rid of
D.is ridded of
目前相机和摄像机都进入数码时代,一般采用CCD感光记录图像,衡量它们的关键指标是()。
A.光学变焦倍数
B.电子变焦倍数
C.存贮空间大小
D.分辨率或相素