下列现象不属于乳化现象在生活中的应用的是 ()
A:用洗洁精洗去餐具上的油污
B:用肥皂液洗涤衣服上的油渍
C:用汽油洗去衣服上沾染的油污
D:用乳化剂稀释难溶于水的液态农药
根据短文理解,选择正确答案。
Attention, Students! Beach Party Comes!
We will hold an outdoor party in Fulong on July 10.
Activities
1). Bike riding or hiking from the Student Centre to the beach
2). A cookout (野炊) on the beach
3). Swimming and sailing competitions
You should bring
sun cream, sunglasses, hats, swimsuits, hiking shoes, and personal items
Deadline
(最后期限)
for signing up
Friday, June 28
Fee
$300 per person(每人)
Meet at the Student Centre at 9:30 am, July 10.
若3是关于方程x2-5x+c=0的一个根,则这个方程的另一个根是( )
胎生相对于其他生殖方式的优势在于( )