【单选题】凡截止波长()工作波长的模式都可以是导行波。
【多选题】河南省通用安装工程预算定额基价中的( )为不可 竞争费,按足额计取。
【单选题】What is a reason WHY the APA added "they" to its writing guide?
A.
to show that it saw Sam Smith in the news
B.
to explain its new definition that is online
C.
to help writers avoid mistakes with "he" and "she"
D.
to make sure that writers use "they" for everyone
【单选题】Sam asks, "How was your trip?" What is he asking about?
A.
Chris's trip to New York
B.
Chris's ride in the taxi
C.
Chris's trip to I-Travel
【单选题】Chris says, "Wow, two jobs. Sounds busy." What does he mean?
A.
The traffic is very bad today.
B.
I-Travel has a lot of customers.
C.
Sam works a lot every day.
【单选题】Kate says, "Sam, this place is a mess." Sam says, "Oh, really?"
C.
He doesn't think it's a mess.
【单选题】关于肾小囊结构的描述中,不确切的是( )。