在食用油脂中，植物油营养价值相对较高，动物油营养价值相对不高，所以不要吃动物油。
参考答案：错
A great explosion _______ in a chemical factory in Hangzhou several months ago.
A．occurred
B．occurred to
C．has happened
D．has taken place
腭肌包括下列哪些肌肉
A．腭帆张肌
B．腭帆提肌
C．腭肌
D．咽腭肌
E．悬雍垂肌
