绝大多数病毒的大小为
A.1nm左右
B.10nm左右
C.100nm左右
D.10μm左右
E.1μm左右
参考答案:C
---We really enjoy ourselves at the party. Thanks again, Mr. and Mrs. White.
---_____. Just drop in whenever you feel like it.
A.Our great honor
B.Nice having you here
C.Nice you are here
D.With pleasure
读图,回答:
(1)填写图中数字所代表的地理事物名称.
邻国:①______ ②______
盆地:③______、农业区:⑦______ ⑧______
矿产地:⑨______ ⑩______
(2)西北地区自然环境的主要特征是什么?______
(3)想一想,西北地区的植被,受距海远近的影响,由东向西变化有什么特点?