【单选题】Lay days are commonly expressed as _______.
D.
eight hours ’ working days
【单选题】关于纤毛的描述,下列哪项错误?
B.
纤毛表面为细胞膜,内为细胞质,含有纵行的微管
C.
微管的排列,外周为9组二联微管,中央为两条完整的单微管
【简答题】完形填空 After a failed marriage, depression, not working for four years, and sending out over 200 resumes in the last five months, today I got a $60,000/year job in my field of __1__ . I'd been in the ru...
【简答题】第一节 完形填空(共 20 小题;每小题 1.5 分,满分 30 分) 阅读下列短文 , 从每题所给的 A 、 B 、 C 和 D 四个选项中 , 选出可以填入空白处的最佳选项。 After a failed marriage, depression, not working for four years, and sending out over 200 resumes in the last ...