吸水管耐真空压力为94Kpa,耐试验压力为440Kpa。
参考答案:对
—What delicious bread!
—That's right. It will taste ___with butter. [ ]
A. bad
B. well
C. worse
D. better
运动技能形成分几个时相?教学训练中应该注意些什么?