过滤是为了减少油液中的(),防止()等杂质随油进入设备而采取的措施。
参考答案:杂质含量;尘屑
胁肋胀痛,腹胀纳呆,便溏或腹痛欲泄,泄后痛减,肠鸣矢气,证属()
A.肝胃不和
B.肝脾不调
C.肝气郁结
D.食滞胃脘
E.以上均不是
He is clever and he can always _____ good ideas to solve problems.[ ]
A. think about
B. come up with
C. give out
D. think out