当PSY的取值第一次进入采取行动的区域时,往往容易出错。这一条对PSY来说尤为重要,所以几乎每次都要求PSY进入高位或低位两次以上才能采取行动。( )
参考答案:对
下列选项中,能促进Ca2+在小肠吸收的因素是()
A.葡萄糖
B.植酸
C.草酸盐
D.磷酸盐
-- Why didn't Mike attend the evening party?
-- He is a quiet boy; He loves reading at home ______ to parties.
A.than go
B.rather than going
C.than going
D.more than goes