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【单选题】
已知直线l 1 的方向向量a＝(2, 4，x)，直线l 2 的方向向量b＝(2，y,2)，若|a|＝6，且a⊥b，则x＋y的值是( )A.
－3或1
B.
3或－1
C.
－3
D.
1
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举一反三
【单选题】What types of international transactions are recorded in the balance of payment accounts?
A.
transactions that involve exports and imports of goods and services
B.
transactions that involve the purchase or sell of financial assets
C.
exports and imports of goods and services
D.
all of the above
【单选题】Which of the following types of accounts have a normal credit balance?
A.
Assents and Liabilities
B.
Assets and Expense
C.
Liabilities and Revenue
D.
Above all
【单选题】－－－－ It is reported in the local newspaper that the murderer was caught in a small town.－－－－ ___
A.
26. ---- It is reported in the local newspaper that the murderer was caught in a small town. ---- ________. A．Justice has long arms
B.
One false move may lose the game
C.
Lies have short legs
D.
Kings go mad, and the people suffer for it
【判断题】Major types of assets include notes payable, accounts payable, and salaries payable.
A.
正确
B.
错误
【单选题】The reason why I didn’t go to France was __________ a new job.
A.
because I got
B.
because of getting
C.
I got
D.
that I got
【单选题】________,I have never seen anyone who is as capable as David. [ ]
A.
As I have traveled so much
B.
As long as I have traveled much
C.
Now that I have traveled much
D.
Much as I have traveled
【单选题】There are ( ) basic types of accounts requiring adjusting entries.
A.
2
B.
3
C.
4
D.
5
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