以下是PRODUCT表和SHIPPING COST表的结构：
PRODUCT
---------------------------------
PRODUCT_ID NUMBER(9)
PRODUCT_NAMEVARCHAR2(20)
COSTNUMBER(5, 2)
RETAIL_PRICENUMBER(5, 2)
WEIGHT NUMBER(5, 2)
SHIPPING_COST
---------------------------------
ID NUMBER(9)
LOWWEIGHT NUMBER(5, 2)
HIGHWEIGHT NUMBER(5, 2)
COSTNUMBER(5, 2)
如果需要显示包括了每个产品运输价格(shipping cost)的产品名(product name)，而运输价格是通过比较SHIPPING COST表中产品重量的下限和上限来计算的。现在请问，应使用如下查询语句中的哪两个语句

A．SELECT
product_name, cost
FROM

product NATURAL JOIN shipping_cost;
B．SELECT
p.product_name, s.cost
FROM

product p, shipping_cost s
WHERE

p.product_id=s.id(+);
C．SELECT
p.product_name, s.cost
FROM

product p, shipping_cost s
WHERE

p.weight BETWEEN s.lowweight AND s.highweight;
D．SELECT
p.product_name, s.cost
FROM

product p, shipping_cost s
USING

(p.weight, BETWEEN s.lowweight AND s.highweight);
E．SELECT
p.product name.s.cost
FROM

product p JOIN shipping_cost s
ON

(p.weight BETWEEN s.lowweight AND s.highweight);

移动梦网门户网站是（）；移动梦网手机登录的网址是（）。