1. A
2. B
3. C
4. D
5. E
C
1. A
2. B
3. C
4. D
5. E
A
1. A
2. B
3. C
4. D
5. E
D
1. A
2. B
3. C
4. D
5. E
B
1. A
2. B
3. C
4. D
5. E
A
1. A
2. B
3. C
4. D
5. E
B
1. A
2. B
3. C
4. D
5. E
C
1. glucose
2. fructose
3. glucose + fructose
4. laevulinic acid
laevulinic acid
1. Al 94%, Mg 6%
2. Cu 56%, Zn 24%, Ni 20%
3. Cu 95%, Al 5%
4. Al 95%, Cu 4%, Mn 0.5%, Mg 0.5%
Al 95\%, Cu 4\%, Mn 0.5\%, Mg 0.5\%
1. zero
2. positive
3. negative
4. none of these
negative