关于系统性红斑狼疮说法不正确的是（） A.好发于女性 B.是一种自身免疫性疾病 C.

— Look at the picture.

— ___________________[ ]

A. How beautiful!

B. Good idea!

C. All right!

兽药应根据（）要求的储存条件存放。

室内上下水管的安装步骤是：先装干管，在装立管，后装支管，直到各配水点。

渗透泵型栓剂是一种控释型栓剂。（）

For any 3 given numbers, which of the following is always equivalent to adding the 3 numbers together and then dividing the sum by 3 ？（）
Ⅰ. Ordering the 3 numbers numerically, from highest to lowest, and then selecting the middle number.
Ⅱ. Dividing each of the numbers by 3 and then adding the results together.
Ⅲ. Multiplying each number by 6, adding the resulting products together, and then dividing the sum by 9.

A. Ⅰ only

B. Ⅱ only

C. Ⅰ and Ⅱ only

D. Ⅱ and Ⅲ only

E. None of the above