Step 1: Identify the substances.
Antibiotics are substances used to kill or inhibit the growth of bacteria.
Streptomycin, chloromycin, and penicillin are antibiotics.
Step 2: Analyze the options.
Aflatoxin is a toxin produced by fungi, not an antibiotic. Streptomycin, chloromycin, and penicillin are all used to treat bacterial infections.
Conclusion: The correct answer is (D) Aflatoxin.
Let the function $ f(x) $ be defined as follows: $$ f(x) = \begin{cases} (1 + | \sin x |)^{\frac{a}{|\sin x|}}, & -\frac{\pi}{6}<x<0 \\b, & x = 0 \\ \frac{\tan 2x}{\tan 3x}, & 0<x<\frac{\pi}{6} \end{cases} $$ Then the values of $ a $ and $ b $ are: