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【简答题】
预算外资金是集中性资金。 （ ）
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举一反三
【多选题】Choose all of the true statements about good working/studying methods, procrastination and how to overcome procrastination.
A.
Keep a planner journal and keep track of the methods and techniques that work best for you.
B.
Make sure to put yourself in an environment with many distractions to help train yourself to overcome your procrastination urges.
C.
Making a task list is best done at night, right before you go to sleep. Research shows that this helps your zombies (subconscious processes) to process the list overnight, making it easier to work on your tasks the next day.
D.
Pay attention for procrastination cues and remove yourself from environments that contain many distractions and procrastination cues.
【单选题】If you consider the 6 loops that make up the CDR, three from the heavy chain and three from the light, how many of these loops owe at least some of their variation directly to splicing and addition pr...
A.
1
B.
2
C.
3
D.
4
E.
all six
【简答题】The following program consists of 3 concurrent processes and 3 binary semaphores. The semaphores are initialized as S0 = 1, S1 = 0, S2 = 0. Process P0
while(true)
{
wait(S0);
print '0';
re...
【单选题】How many ARCN processes can be associated with an instance?
A.
Five
B.
Four
C.
Ten
D.
Operating system dependent
【单选题】How many ARCn processes can be associated with an instance?
A.
Five
B.
Four Ten
C.
Ten
D.
Operating system dependent
【简答题】The following pair of processes share a common variable X. Process A
int Y;
A1: Y = X*2;
A2: X = Y;
Process B
int Z;
B1: Z = X+1;
B2: X = Z; X is set to 5 before either process begins execution. ...
【简答题】The program follows to use a shared binary semaphore T. Process A
int Y;
A1: Y = X*2;
A2: X = Y;
signal(T);
Process B
int Z;
B1: wait(T);
B2: Z = X+1;
X = Z; T is...
【多选题】How do aromatic amino acids serve as precursors of many plant compounds?
A.
Phenylalanine, tyrosine, and tryptophan are converted to a variety of important compounds in plants.
B.
The rigid polymer lignin, derived from phenylalanine and tyrosine, is second only to cellulose in abundance in plant tissues. The structure of the lignin polymer is complex and not well understood.
C.
Tryptophan is also the precursor of the plant growth hormone indole-3-acetate, or auxin, which is important in the regulation of a wide range of biological processes in plants.
D.
Phenylalanine and tyrosine also give rise to many commercially significant natural products, including the tannins that inhibit oxidation in wines; alkaloids such as morphine, which have potent physiological effects; and the flavoring of cinnamon oil, nutmeg, cloves, vanilla, cayenne pepper, and other products.
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