【单选题】What does the man mean to do?
A.
Sign his name for the fan.
B.
Fill in an application form.
C.
Exchange gifts with his friends.
D.
Get a purchase refunded.
【简答题】Ag 2 O和稀硫酸反应的产物是______,HgO和稀硫酸反应的产物是______。
【单选题】听力原文:F: My watch stopped again. And I just got a new battery. M: Why don't you take it to the shop on campus? They can check it for you. And they're pretty reasonable. Q: What does the man mean? (16)
A.
He suggests the woman to have her watch refunded.
B.
He suggests the woman to buy a new battery in the shop on campus.
C.
He believes the shop on campus sells watches at a reasonable price.
D.
He suggests the woman to have her watch checked in the shop.
【简答题】将 C1 2 (g) 通入热的 Ca(OH) 2 溶液中,反应的产物是 ;常温下, Br 2 (l) 与 Na 2 CO 3 溶液反应的产物是 ;常温下, I 2 与 NaOH 溶液反应的产物是 。
【单选题】两个逻辑变量,只要有一个为1,其运算结果就为1,这是( )。[单选题]