(单选题)4: 草酸钙晶体加入何种试剂溶解形成针晶 （ ） A: 盐酸 B: 硫酸 C: 醋酸 D: 碳酸 E: 硝酸 ...

(单选题)48: If you have no _________ use for this book, I'll give it to someone else. A: continual B: spare C: latter D: further ...

(单选题)42: She ______ in vain to get onto the crowded bus and had to wait for the next one and risk being late for work. A: tested B: fought C: tried D: managed ...

(单选题)30: John Kennedy was______ of the United States. A: thirty- five president B: thirty-fifth president C: the thirty-fifth president D: the thirsty-five president ...

(单选题)24: There is something gone wrong ______ the machine. A: in B: to C: with D: about ...

(单选题)18: He is very ______ his children and permits them few privileges. A: hard against B: hard on C: hard with D: hard to ...

(单选题)12: ______ he may be, he will be happy. A: Whichever B: Whenever C: Whatever D: Whoever ...

(单选题)6: The pen ______ well. A: is being written B: write C: is written D: writes ...

(单选题)100: Be sure to ______ your work at the end of the exam. A: catch sight of B: set aside C: hang up D: look over ...

(单选题)94: It’s _______ that he will succee A: highly likely B: highly probably C: high possibly D: high likely ...