妊娠期间血液处于高凝状态，凝血因子Ⅺ、Ⅻ增加。()
参考答案：错
Shackleton kept his promise ____he would return to Elephant Island ____the crew had been left.
A．which; that
B．that; which
C．what; where
D．that; where
people usually eat _____ at 7:00 pm. [ ]
A. egg
B. break fast
C. dinner
D. lunch
