The time __________each control signal is sent is carefully controlled by a digital clock.
A: of which
B: for which
C: in which
D: to which
E: at which
F: for whom
G: in whom
A: of which
B: for which
C: in which
D: to which
E: at which
F: for whom
G: in whom
举一反三
- I am grateful to him for his advice, __________ I own all my success. A: of which B: for which C: in which D: to which E: at which F: for whom G: in whom
- This is the factory ______we once worked. A: which B: in which C: whom D: that
- The interviewer, _____ I know nothing about, is __________ in working with children. A: which; experience B: whom; experience C: which; experienced D: whom; experienced
- The girl ______ house he visited was Elizabeth. A: whose B: which C: of whom D: of which
- New (technical) in the 1970s led to the (popular) digital watch and digital clock, (which) displayed the time and often the day, (date), and elapsed time.() A: technical B: popular C: which D: date